fix IAM policy

Author: devksingh4

cloudformation/iam.yml

@@ -151,7 +151,7 @@ Resources:
                   - lambda:invokeFunction
                 Effect: Allow
                 Resource:
-                  - Fn::Sub: "arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${LambdaFunctionName}"
+                  - Fn::Sub: "arn:aws:lambda:${AWS::Region}:${AWS::AccountId}:function:${LambdaFunctionName}:*"
         - PolicyName: lambda-generic
           PolicyDocument:
             Version: "2012-10-17"