Fix bug where replies to commit notes displayed in the MR discussion tab wouldn't show up on the commit page

Test for showing GitLab Workhorse version on Admin Dashboard

Refactoring

Signed-off-by: Rémy Coutable <remy@rymai.me>

See #19985

Signed-off-by: Rémy Coutable <remy@rymai.me>

Currently, even when searching for all authorized issues of *one* project, we run the
`Users#authorized_projects` query (which can be rather slow). This update checks if
we are handling issues of just one project and does the authorization check locally.
It does have the downside of basically repeating the logic of `Users#authorized_projects`
on `Project#authorized_for_user`.

Also, in favour of consistency, deprecate `/projects/:id/keys/...` routes in favour of
`/projects/:id/deploy_keys/...`

Signed-off-by: Rémy Coutable <remy@rymai.me>

Closes #19741

* This method previously iterated over all services in a project.  Now it
will directly query the ExternalWikiService for the project and filter
by active state.
* The presence of an external wiki is also cached
* When an external wiki is added or removed, the cached value is updated

This simply inserts the current GitLab version in the "deployments"
measurement.

Fixes gitlab-com/infrastructure#98

added spec for avatar saver

avatar saver!

added avatar restorer spec

fix spec

added avatar restorer class

fix export service

fix warnings, added changelog

fix spec

some refactoring based on feedback

fixed a few issues after testing i/e avatar

WIP - trying to replicate UTF-8 error

fix spec

fixing encoding issue and another spec, to do with MR diffs

fix issue and spec failure

Add changelog and bumped up I/E version

fix spec based on feedback - omitted target project