feat(awslambda): New check to ensure that a function is inside VPC (#4783)

Co-authored-by: Sergio Garcia <38561120+sergargar@users.noreply.github.com>

tests/providers/aws/services/awslambda/awslambda_service_test.py

@@ -220,6 +220,7 @@ class Test_Lambda_Service:
             assert awslambda.functions[
                 lambda_arn_1
             ].url_config.cors_config.allow_origins == ["*"]
+            assert awslambda.functions[lambda_arn_1].vpc_id == "vpc-123abc"
 
             assert awslambda.functions[lambda_arn_1].tags == [{"test": "test"}]