Bug: [BUG] FEATURE_MATRIX shows JPMorgan does not support Refunds



I added support for refunds 3 weeks ago in #8436. Feature matrix needs to be updated.
diff --git a/crates/hyperswitch_connectors/src/connectors/jpmorgan.rs b/crates/hyperswitch_connectors/src/connectors/jpmorgan.rs
index 80e3d61278f..7577154f6b1 100644
--- a/crates/hyperswitch_connectors/src/connectors/jpmorgan.rs
+++ b/crates/hyperswitch_connectors/src/connectors/jpmorgan.rs
@@ -847,7 +847,7 @@ static JPMORGAN_SUPPORTED_PAYMENT_METHODS: LazyLock<SupportedPaymentMethods> =
             enums::PaymentMethodType::Debit,
             PaymentMethodDetails {
                 mandates: enums::FeatureStatus::NotSupported,
-                refunds: enums::FeatureStatus::NotSupported,
+                refunds: enums::FeatureStatus::Supported,
                 supported_capture_methods: supported_capture_methods.clone(),
                 specific_features: Some(
                     api_models::feature_matrix::PaymentMethodSpecificFeatures::Card({
@@ -866,7 +866,7 @@ static JPMORGAN_SUPPORTED_PAYMENT_METHODS: LazyLock<SupportedPaymentMethods> =
             enums::PaymentMethodType::Credit,
             PaymentMethodDetails {
                 mandates: enums::FeatureStatus::NotSupported,
-                refunds: enums::FeatureStatus::NotSupported,
+                refunds: enums::FeatureStatus::Supported,
                 supported_capture_methods: supported_capture_methods.clone(),
                 specific_features: Some(
                     api_models::feature_matrix::PaymentMethodSpecificFeatures::Card({

## Type of Change
<!-- Put an `x` in the boxes that apply -->

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

## Description
<!-- Describe your changes in detail -->

This PR marks refunds as supported by JPMorgan connector. Although this does not affect refund flow, the feature matrix marking is wrong. 

### 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.

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I added refunds support 3 weeks ago in #8436 and this was missed.
closes #8698

## How did you test it?
<!--
Did you write an integration/unit/API test to verify the code changes?
Or did you test this change manually (provide relevant screenshots)?
-->

Hit feature matrix endpoint:

```sh
curl --location 'http://localhost:8080/feature_matrix' \
--header 'Content-Type: application/json' \
--header 'Accept: application/json'
```
```json
{
...
            "supported_payment_methods": [
                {
                    "payment_method": "card",
                    "payment_method_type": "credit",
                    "payment_method_type_display_name": "Credit Card",
                    "mandates": "not_supported",
                    "refunds": "supported",
                    "supported_capture_methods": [
                        "automatic",
                        "manual"
                    ],
                    "three_ds": "not_supported",
                    "no_three_ds": "supported",
                    "supported_card_networks": [
                        "AmericanExpress",
                        "DinersClub",
                        "Discover",
                        "JCB",
                        "Mastercard",
...
                },
                {
                    "payment_method": "card",
                    "payment_method_type": "debit",
                    "payment_method_type_display_name": "Debit Card",
                    "mandates": "not_supported",
                    "refunds": "supported",
                    "supported_capture_methods": [
                        "automatic",
                        "manual"
                    ],
                    "three_ds": "not_supported",
                    "no_three_ds": "supported",
                    "supported_card_networks": [
                        "AmericanExpress",
                        "DinersClub",
                        "Discover",
                        "JCB",
                        "Mastercard",
                        "UnionPay",
                        "Visa"
                    ],
                    "supported_countries": [
                        "FRA",
                        "BEL",
...
}
```

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

- [x] I formatted the code `cargo +nightly fmt --all`
- [x] I addressed lints thrown by `just clippy && just clippy_v2`
- [x] I reviewed the submitted code
- [ ] I added unit tests for my changes where possible
