Bug: [REFACTOR] List the Payment Methods Based on the Connector Type 



### Feature Description

List the Payment Methods Based on the Connector Type being Payment Processor

### Possible Implementation

List the Payment Methods Based on the Connector Type being Payment Processor

### Have you spent some time checking if this feature request has been raised before?

- [X] I checked and didn't find a similar issue

### Have you read the Contributing Guidelines?

- [X] I have read the [Contributing Guidelines](https://github.com/juspay/hyperswitch/blob/main/docs/CONTRIBUTING.md)

### Are you willing to submit a PR?

Yes, I am willing to submit a PR!
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
 List the Payment Methods for Merchant , based on the connector  type, to differentiate between Payments and Payouts Processors


### Additional Changes

- [ ] This PR modifies the API contract
- [ ] This PR modifies the database schema
- [ ] This PR modifies application configuration/environment variables

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1. `config`
2. `crates/router/src/configs`
3. `loadtest/config`
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## Motivation and Context
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Why is this change required? What problem does it solve?
If it fixes an open issue, please link to the issue here.

If you don't have an issue, we'd recommend starting with one first so the PR
can focus on the implementation (unless it is an obvious bug or documentation fix
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## How did you test it?

- Create a MA
- Create two MCA , one with the `connector_type : "payment_processor"` other with the connector type as `payout_processor`

- Create a payment
- Do a list of Pms for the Merchant Account, BOA would not be here as its connector_type is `payout_processor`, cause here only the PMs with `payment_processor` would get listed

```
{
    "redirect_url": "https://google.com/success",
    "currency": "USD",
    "payment_methods": [
        {
            "payment_method": "wallet",
            "payment_method_types": [
                {
                    "payment_method_type": "google_pay",
                    "payment_experience": [
                        {
                            "payment_experience_type": "invoke_sdk_client",
                            "eligible_connectors": [
                                "stripe"
                            ]
                        }
                    ],
                    "card_networks": null,
                    "bank_names": null,
                    "bank_debits": null,
                    "bank_transfers": null,
                    "required_fields": {},
                    "surcharge_details": null,
                    "pm_auth_connector": null
                }
            ]
        },
        {
            "payment_method": "card",
            "payment_method_types": [
                {
                    "payment_method_type": "credit",
                    "payment_experience": null,
                    "card_networks": [
                        {
                            "card_network": "Visa",
                            "surcharge_details": null,
                            "eligible_connectors": [
                                "stripe"
                            ]
                        }
                    ],
                    "bank_names": null,
                    "bank_debits": null,
                    "bank_transfers": null,
                    "required_fields": {
                        "payment_method_data.card.card_cvc": {
                            "required_field": "payment_method_data.card.card_cvc",
                            "display_name": "card_cvc",
                            "field_type": "user_card_cvc",
                            "value": null
                        },
                        "payment_method_data.card.card_exp_year": {
                            "required_field": "payment_method_data.card.card_exp_year",
                            "display_name": "card_exp_year",
                            "field_type": "user_card_expiry_year",
                            "value": null
                        },
                        "payment_method_data.card.card_number": {
                            "required_field": "payment_method_data.card.card_number",
                            "display_name": "card_number",
                            "field_type": "user_card_number",
                            "value": null
                        },
                        "payment_method_data.card.card_exp_month": {
                            "required_field": "payment_method_data.card.card_exp_month",
                            "display_name": "card_exp_month",
                            "field_type": "user_card_expiry_month",
                            "value": null
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                },
                {
                    "payment_method_type": "debit",
                    "payment_experience": null,
                    "card_networks": [
                        {
                            "card_network": "JCB",
                            "surcharge_details": null,
                            "eligible_connectors": [
                                "stripe"
                            ]
                        }
                    ],
                    "bank_names": null,
                    "bank_debits": null,
                    "bank_transfers": null,
                    "required_fields": {
                        "payment_method_data.card.card_exp_year": {
                            "required_field": "payment_method_data.card.card_exp_year",
                            "display_name": "card_exp_year",
                            "field_type": "user_card_expiry_year",
                            "value": null
                        },
                        "payment_method_data.card.card_exp_month": {
                            "required_field": "payment_method_data.card.card_exp_month",
                            "display_name": "card_exp_month",
                            "field_type": "user_card_expiry_month",
                            "value": null
                        },
                        "payment_method_data.card.card_cvc": {
                            "required_field": "payment_method_data.card.card_cvc",
                            "display_name": "card_cvc",
                            "field_type": "user_card_cvc",
                            "value": null
                        },
                        "payment_method_data.card.card_number": {
                            "required_field": "payment_method_data.card.card_number",
                            "display_name": "card_number",
                            "field_type": "user_card_number",
                            "value": null
                        }
                    },
                    "surcharge_details": null,
                    "pm_auth_connector": null
                }
            ]
        }
    ],
    "mandate_payment": null,
    "merchant_name": "NewAge Retailer",
    "show_surcharge_breakup_screen": false,
    "payment_type": "new_mandate",
    "request_external_three_ds_authentication": false,
    "collect_shipping_details_from_wallets": false,
    "collect_billing_details_from_wallets": false
}
```


## Checklist
<!-- Put an `x` in the boxes that apply -->

- [ ] I formatted the code `cargo +nightly fmt --all`
- [ ] I addressed lints thrown by `cargo clippy`
- [ ] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
