GrapeDSL for project hooks

Added ~13884 label

Milestone changed to %8.14

Fixed the rubocop error, this should be good now.

Edit: when my push is picked up by GitLab..

Added 1 commit:

• a214a34e - GrapeDSL for project hooks

Compare with previous version

Reassigned to @zj

Resolved all discussions

Added 158 commits:

• 73b88467...d9cf5c0a - 156 commits from branch master
• 7f738111 - GrapeDSL for project hooks
• c10926a6 - Move shared params to a helper

Compare with previous version

Rebased, solved the conflicts. Should be good now.

Reassigned to @rymai

Enabled an automatic merge when the build for c10926a6 succeeds

Thanks @zj, LGTM!

Added backstage label

Mentioned in issue #22928 (moved)

@zj Please rebase on the fixed master and assign back, thanks!

Reassigned to @zj

Done.

Reassigned to @rymai