### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

The use case I have in mind is to run Node 16.x Lambdas - the default container registry is `lambci/lambda` which is effectively abandoned. [Not even Node 14.x has been published](https://github.com/lambci/docker-lambda/pull/330). However, switching the registry over to [`amazon/aws-lambda-nodejs`](https://hub.docker.com/r/amazon/aws-lambda-nodejs) still fails to pull the container, since localstack is looking for the tag `nodejs16.x`. I'd like to be able to specify that if the runtime is `nodejs16.x` it just looks for tag `16`.

### 🧑‍💻 Implementation

_No response_

### Anything else?

_No response_
return (
        os.environ.get("TEST_TARGET") != "AWS_CLOUD"
        and os.environ.get("PROVIDER_OVERRIDE_LAMBDA") != "asf"
    )
PROVIDED_TEST_RUNTIMES = [
    LAMBDA_RUNTIME_PROVIDED,
    
    pytest.param(
        LAMBDA_RUNTIME_PROVIDED_AL2,
        marks=pytest.mark.skipif(
            is_old_provider(), reason="curl missing in provided.al2 lambci image"
        ),
    ),
]
T = TypeVar("T")
def read_streams(payload: T) -> T: