Serverless function follow up (#9924)

- remove asynchronous serverless function build
- build serverless function synchronously instead on activate workflow
or execute
- add a loader on workflow code step test tab test button
- add a new `ServerlessFunctionSyncStatus` `BUILDING`
- add a new route to build a serverless function draft version 
- delay artificially execution to avoid UI flashing



https://github.com/user-attachments/assets/8d958d9a-ef41-4261-999e-6ea374191e33

packages/twenty-server/src/engine/metadata-modules/serverless-function/dtos/build-draft-serverless-function.input.ts

@@ -0,0 +1,9 @@
+import { ID, InputType } from '@nestjs/graphql';
+
+import { IDField } from '@ptc-org/nestjs-query-graphql';
+
+@InputType()
+export class BuildDraftServerlessFunctionInput {
+  @IDField(() => ID, { description: 'The id of the function.' })
+  id!: string;
+}

packages/twenty-server/src/engine/metadata-modules/serverless-function/dtos/serverless-function-execution-result.dto.ts

@@ -4,6 +4,7 @@ import { IsObject, IsOptional } from 'class-validator';
 import graphqlTypeJson from 'graphql-type-json';
 
 export enum ServerlessFunctionExecutionStatus {
+  IDLE = 'IDLE',
   SUCCESS = 'SUCCESS',
   ERROR = 'ERROR',
 }