### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

In AWS, DescribeSubnet Response returns:
```
<?xml version="1.0" encoding="UTF-8"?>\n
    <Response>
        <Errors>
            <Error>
                <Code>InvalidSubnetID.NotFound</Code>
                <Message>The subnet ID \'test\' does not exist</Message>
            </Error>
        </Errors>
    <RequestID>f6d041c1-1c96-4720-af30-77745504e2ba</RequestID>
</Response>
```

whereas localstack returns:
```
<?xml version=\'1.0\' encoding=\'utf-8\'?>\n<Errors xmlns="http://ec2.amazonaws.com/doc/2016-11-15">
    <Error>
        <Code>InvalidSubnetID.NotFound</Code>
        <Message>aaThe subnet ID \'vpc-test\' does not exist</Message>
    </Error>
    <RequestID>EADJHWMM796CI5FT10XGFMGOXIPCBAHBWINMV0HR6SKBRODGCU5J</RequestID>
</Errors>

```

### Expected Behavior

It should return correct response structure. It causes terraform to complain.

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    make start

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

     awslocal ec2 describe-subnets --subnet-ids vpc-test --debug


### Environment

```markdown
- OS: M1 MacOS
- LocalStack: 1.0.2.dev
```


### Anything else?

Probably `call_moto` function in `localstack/services/moto.py` is changing the error code structure.
"LambdaConfig": {
                "PreSignUp": "string",
                "CustomMessage": "string",
                "PostConfirmation": "string",
                "PreAuthentication": "string",
                "PostAuthentication": "string",
                "DefineAuthChallenge": "string",
                "CreateAuthChallenge": "string",
                "VerifyAuthChallengeResponse": "string",
                "PreTokenGeneration": "string",
                "UserMigration": "string",
                "CustomSMSSender": {"LambdaVersion": "V1_0", "LambdaArn": "string"},
                "CustomEmailSender": {"LambdaVersion": "V1_0", "LambdaArn": "string"},
                "KMSKeyID": "string",
            },
            "Status": "Enabled",
            "LastModifiedDate": datetime(2015, 1, 1, 23, 59, 59, 6000, tzinfo=tzutc()),
            "CreationDate": datetime(2015, 1, 1, 23, 59, 59, 6000, tzinfo=tzutc()),
            "SchemaAttributes": [
                {
                    "Name": "string",
                    "AttributeDataType": "String",
                    "DeveloperOnlyAttribute": True,
                    "Mutable": True,
                    "Required": True,
                    "NumberAttributeConstraints": {"MinValue": "string", "MaxValue": "string"},
                    "StringAttributeConstraints": {"MinLength": "string", "MaxLength": "string"},
                },
            ],
            "AutoVerifiedAttributes": [