### Is there an existing issue for this?

- [X] I have searched the existing issues

### Feature description

AWS lambda has [support for reporting partial batch failure for a SQS batch](https://docs.aws.amazon.com/lambda/latest/dg/with-sqs.html#services-sqs-batchfailurereporting). We're currently using it for our lambda functions on our [serverless.yml](https://www.serverless.com/blog/improved-sqs-batch-error-handling-with-aws-lambda), and would like to test the configuration locally. It'd be great to have it supported on LocalStack.


### 🧑‍💻 Implementa

_No response_

### Anything else?

![Screenshot 2022-01-19 at 6 00 31 PM](https://user-images.githubusercontent.com/39733588/150461615-949ec0b5-564b-4c0c-8a51-0047a7f0faef.png)


```
            "FunctionResponseTypes": [
                "ReportBatchItemFailures"
            ]
```
is missing from localstack's event source mapping despite setting it
content = json.loads(content)
        except Exception:
            pass
        return content
    raise ClientError("Unexpected value for LAMBDA_FALLBACK_URL: %s" % config.LAMBDA_FALLBACK_URL)
def get_lambda_policy(function, qualifier=None):
    iam_client = aws_stack.connect_to_service("iam")
    policies = iam_client.list_policies(Scope="Local", MaxItems=500)["Policies"]
    docs = []
    for p in policies:
        
        versions = iam_client.list_policy_versions(PolicyArn=p["Arn"])["Versions"]
        default_version = [v for v in versions if v.get("IsDefaultVersion")]
        versions = default_version or versions
        doc = versions[0]["Document"]
        doc = doc if isinstance(doc, dict) else json.loads(doc)
        if not isinstance(doc["Statement"], list):
            doc["Statement"] = [doc["Statement"]]
        for stmt in doc["Statement"]:
            stmt["Principal"] = stmt.get("Principal") or {"AWS": get_aws_account_id()}
        doc["PolicyArn"] = p["Arn"]
        doc["PolicyName"] = p["PolicyName"]
        doc["Id"] = "default"
        docs.append(doc)
    
    policy_name = get_lambda_policy_name(
        aws_stack.lambda_function_name(function), qualifier=qualifier
    )