### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

It would be great if localstack supported AWS Resource Access Manager. This would allow for testing multi-account AWS Transit Gateway setups, for example.

### 🧑‍💻 Implementation

_No response_

### Anything else?

Related: https://github.com/localstack/localstack/issues/7041
from localstack.services.cloudwatch.provider import CloudwatchProvider
    provider = CloudwatchProvider()
    return Service.for_provider(provider, dispatch_table_factory=MotoFallbackDispatcher)
@aws_provider()
def dynamodb():
    from localstack.services.dynamodb.provider import DynamoDBProvider
    provider = DynamoDBProvider()
    return Service.for_provider(
        provider,
        dispatch_table_factory=lambda _provider: HttpFallbackDispatcher(
            _provider, _provider.get_forward_url
        ),
    )
@aws_provider()
def dynamodbstreams():
    from localstack.services.dynamodbstreams.provider import DynamoDBStreamsProvider
    provider = DynamoDBStreamsProvider()
    return Service.for_provider(provider)
@aws_provider()
def ec2():
    from localstack.services.ec2.provider import Ec2Provider
    provider = Ec2Provider()
    return Service.for_provider(provider, dispatch_table_factory=MotoFallbackDispatcher)
@aws_provider()
def es():
    from localstack.services.es.provider import EsProvider
    provider = EsProvider()
    return Service.for_provider(provider)
@aws_provider()
def firehose():