Pipeline Bug: pre-main-jh merges the unverified code into main-jh

Case

Successful Pipeline on pre-main-jh: https://jihulab.com/gitlab-cn/gitlab/-/pipelines/2237671

(MR to pre-main-jh: !2163 (merged))

Although there is a successful pipeline, we do not want to trigger the code sync task in .post stage.

Because this pipeline only contains part of the jobs, there are still failed jobs among the jobs that are not executed.

Specifically, if this job (https://jihulab.com/gitlab-cn/gitlab/-/jobs/11570018) is executed in the pipeline, it will fail too.

How to fix

Plan one ❌

Always execute all jobs on pre-main-jh pipelines.

advantage	disadvantage
The pipeline has unified rules	Cannot merge QA fix alone
	Waste more pipeline resources

Plan two ✅

When pipelines on pre-main-jh do not perform necessary jobs, skip code sync job.

disadvantage	advantage
The pipeline has no unified rules	Can merge QA fix alone
	Save more pipeline resources