Only execute post for actions that have one

src/Runner.Worker/ActionManager.cs

@@ -269,6 +269,8 @@ namespace GitHub.Runner.Worker
                     }
                     else if (depth > 0)
                     {
+                        var definition = LoadAction(executionContext, action);
+                        if (definition.Data.Execution.HasPost) {
                             // if we're in a composite action and haven't loaded the local action yet
                             // we assume it has a post step
                             if (!_cachedEmbeddedPostSteps.ContainsKey(parentStepId))
@@ -282,6 +284,7 @@ namespace GitHub.Runner.Worker
                         }
                     }
                 }
+            }
 
             return state;
         }