* master: (66 commits)
fix confidential border issue as well as confidential styles leaking on new MR
Migrate force push check to Gitaly
Add option to disable project export on instance
Better categorize test coverage results
Add option to disable project export on instance - db changes
Better caching and indexing of broadcast messages
Include the `is_admin` field in the `GET /users/:id` API when current user is an admin
Document rspec-retry and rspec-flaky
Fix cop description
Retrieve and sync flaky specs report from and to S3
Use a new RspecFlakyListener to detect flaky specs
Fix formatting of patch_versions.md [skip ci]
Enable Timecop safe mode
Show error message for API 500 error in tests, and
Fix merge request diff deserialisation when too_large was absent
Delete correct key from `session` after authenticating using U2F
Bumps omniauth-ldap gem version to 2.0.4
Pending delete projects no longer return 500 error in Admins projects view
Do not run the `ee_compat_check` job for stableish branches
Update gitlab.po: Missing 'r' in "Fouché" that comes from "Fourcher" verb.
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