Add [pass sync test] label about pull request

[kslee8282]

currently, some pr merged without sync test unintentionally.
it need to add a [pass sync test] label and get confirmation from QA (kslee8282) before merge.

[gosunuts]

i agree. all branch must be pass sync test before release.
but some pr ( about refactoring, testing, ans so on ) don`t need pass sync test before pull request.

[gosunuts]

i think some pr ( about refactoring, testing ) can add sync test label after merge, but it must add label before release.

[kroggen]

your sentence is not understandable

[kroggen]

PRs that only affect vm_dummy and integration tests can be merged without any sync test.
There is one open right now

[kroggen]

The label pass sync test was created