GitLab Managed App ensure helm version uses tls opts

Closes #63694

See merge request gitlab-org/gitlab-ce!30654

Currently the base64-encoded value of the push-to-secondary data is
saved in `api_json.log`, and this can easily be hundreds of
megabytes. We should filter this from the logs.

The TLS opts were missing from helm version command which meant that it
was just perpetually failing and hence wasting 30s of time waiting for a
command to be successful that was never going to be successful. This
never actually caused any errors because this loop will happily just
fail 30 times without breaking the overall script but it was just a
waste of installation time so now installing apps should be ~30s faster.

* remove feature flag for admin settings
* remove feature flag for domain settings

Use transactions in JS feature specs

Closes #60207

See merge request gitlab-org/gitlab-ce!27496

Add cleanup migration for MR's multiple assignees

See merge request gitlab-org/gitlab-ce!30269

Set the name of a user-namespace to the user name

See merge request gitlab-org/gitlab-ce!23272

[CE] Upgrade to Rails 5.2

See merge request gitlab-org/gitlab-ce!30052

Resolve "API support for group-level clusters"

Closes #55623

See merge request gitlab-org/gitlab-ce!30213

Prevent excessive sanitization of AsciiDoc ouptut

Closes #63298

See merge request gitlab-org/gitlab-ce!30290