8726 workflow add a test button in workflow code step (#9016)

- add test button to workflow code step
- add test tab to workflow code step


https://github.com/user-attachments/assets/e180a827-7321-49a2-8026-88490c557da2



![image](https://github.com/user-attachments/assets/cacbd756-de3f-4141-a84c-8e1853f6556b)

![image](https://github.com/user-attachments/assets/ee170d81-8a22-4178-bd6d-11a0e8c73365)

packages/twenty-server/src/engine/core-modules/graphql/utils/graphql-errors.util.ts

@@ -55,7 +55,7 @@ export class BaseGraphQLError extends GraphQLError {
     }
 
     if (extensions?.extensions) {
-      throw Error(
+      throw new Error(
         'Pass extensions directly as the third argument of the ApolloError constructor: `new ' +
           'ApolloError(message, code, {myExt: value})`, not `new ApolloError(message, code, ' +
           '{extensions: {myExt: value}})`',