Resolve "Allow QA tests to run with `CHROME_HEADLESS=false`"

Closes gitlab-qa#149

See merge request gitlab-org/gitlab-ce!16248

Resolve "No Rendering of emoji's in Group-Overview after update"

Closes #40549

See merge request gitlab-org/gitlab-ce!16098

Remove the Commit#tree method

See merge request gitlab-org/gitlab-ce!16236

Remove unused push_code_to_protected_branches

Closes #38056

See merge request gitlab-org/gitlab-ce!16253

Incorporate RemoteService.FetchInternalRemote Gitaly RPC

Closes gitaly#857

See merge request gitlab-org/gitlab-ce!16140

Move invites spinach test to Rspec

See merge request gitlab-org/gitlab-ce!16126

Move explore groups spinach test to RSpec

See merge request gitlab-org/gitlab-ce!16129

Resolve "Add graph value to hover"

Closes #38030

See merge request gitlab-org/gitlab-ce!16261

Fix slash commands dropdown description

See merge request gitlab-org/gitlab-ce!16125

disables the shortcut to the issue boards when issues are disabled

Closes #41244

See merge request gitlab-org/gitlab-ce!16020

Protected branch is now created for default branch on import

Closes #3968

See merge request gitlab-org/gitlab-ce!16198

Merge branch '39957-redirect-to-gpc-page-if-users-try-to-create-a-cluster-but-the-account-is-not-enabled' into 'master'

Resolve "Redirect to GCP page if users try to create a cluster but the account is not enabled"

Closes #39957 and #41410

See merge request gitlab-org/gitlab-ce!15665

Fix restoring associations with import/export

Closes #41646

See merge request gitlab-org/gitlab-ce!16221

10.4 licenses update

Closes #10

See merge request gitlab-org/gitlab-ce!16269

10.4 templates update

Closes #10

See merge request gitlab-org/gitlab-ce!16266

Fix error 500 when viewing commit and merge request diffs

Closes #41735

See merge request gitlab-org/gitlab-ce!16272

Due to the refactoring in !16082, `Blob#batch` no longer falls back
to a default `blob_size_limit`. Since `Repository#batch_blobs` was using
a default `nil` value, this would cause issues in the `Blob#find_by_rugged`
method.

This fix here is to be consistent and use a non-nil default value in
`Repository#batch_blobs`.

The problem was masked in development and tests because Gitaly is always
enabled by default for all features.

Closes #41735

Merge branch 'master' into 39957-redirect-to-gpc-page-if-users-try-to-create-a-cluster-but-the-account-is-not-enabled

Resolve "Improve non-triggered manual action job detail page"

Closes #22643 and #37843

See merge request gitlab-org/gitlab-ce!15991

Resolve "Clearing the cache"

Closes #41249

See merge request gitlab-org/gitlab-ce!16067

* master: (114 commits)