Update gems for Faraday 2 compatibility

This commit updates a number of gems:

- gitlab-fog-azure-rm: This gem vendored a number of deprecated
Microsoft Azure client libraries and was the main blocker
to updating to Faraday 2.
(https://gitlab.com/gitlab-org/ruby/gems/gitlab-fog-azure-rm/-/merge_requests/48)

- graphlient: Full changelog:
  https://github.com/ashkan18/graphlient/blob/master/CHANGELOG.md

- Elasticsearch-related gems: These were pinned to 7.x presumably
since they still had Faraday 1 support, but we need to update to 8.x
for Faraday 2 support.

As mentoined in https://github.com/lostisland/faraday_middleware,
faraday_middleware is no longer needed supported for Faraday 2.
The JSON middleware is already bundled with Faraday 2.

Relates to https://gitlab.com/gitlab-org/gitlab/-/issues/408884

Changelog: changed