Use prometheus-client-mmap released, final version

See merge request gitlab-org/gitlab-ce!16984

Merge branch '42864-update-vendored-autodevops-yml-for-latest-browser-performance-testing-changes' into 'master'

Update vendored AutoDevOps YML for latest Browser Performance Testing changes

Closes #42864

See merge request gitlab-org/gitlab-ce!16982

Migrate Git::Blob.batch to Gitaly

Closes #37445 and gitaly#985

See merge request gitlab-org/gitlab-ce!16928

Add instructions for source installation to mysql_to_postgresql.md

See merge request gitlab-org/gitlab-ce!16983

Closes gitaly#985

Resolve "Cancelling a second comment edit doesn't return its state to before the edit"

Closes #42462

See merge request gitlab-org/gitlab-ce!16869

Replace $.ajax in profile.js with axios

See merge request gitlab-org/gitlab-ce!16895

Update prometheus gem to version 0.9.1.pre.rc.2 fixing segfaults happening on metrics deletion

See merge request gitlab-org/gitlab-ce!16964

Replace $.get in diff file editor with axios

See merge request gitlab-org/gitlab-ce!16896

Cache Gitaly FindCommit RPC response

See merge request gitlab-org/gitlab-ce!16949

Remove duplicate calls of MergeRequest#can_be_reverted? on MR widget endpoint

See merge request gitlab-org/gitlab-ce!16975

Updating `HelpController` spec to use an existing image

See merge request gitlab-org/gitlab-ce!16977

CE Port: for Filtered search releated changes

See merge request gitlab-org/gitlab-ce!16917

Reset column information after the schema is migrated in MigrationsHelpers.schema_migrate_up!

Closes gitlab-ee#4813

See merge request gitlab-org/gitlab-ce!16950

Clear the timeout in Jobs class after each test

Closes #42830

See merge request gitlab-org/gitlab-ce!16969

Deploy prometheus through kubernetes and autoconnect to cluster

Closes #30480 and #28916

See merge request gitlab-org/gitlab-ce!16182

CE Port for Group Roadmap changes

See merge request gitlab-org/gitlab-ce!16908

Removing gitaly flags

See merge request gitlab-org/gitlab-ce!16953

[ci skip]

Don't use rugged in Repository#refs_hash

Closes gitaly#880

See merge request gitlab-org/gitlab-ce!16827

Translate issuable sidebar

Closes #34416

See merge request gitlab-org/gitlab-ce!16663

Backport LFS File Locking API

Closes #35856

See merge request gitlab-org/gitlab-ce!16935

Check for keep-around commits once if target and source projects are the same

Closes #37439 and gitaly#1000

See merge request gitlab-org/gitlab-ce!16972

Add how to get the external ip of a cluster

Closes #42691

See merge request gitlab-org/gitlab-ce!16874

Search API

Closes #41763

See merge request gitlab-org/gitlab-ce!16878