* master: (274 commits)
  Update VERSION to 9.2.0-pre
  Update CHANGELOG.md for 9.1.0
  Update Auto Deploy documentation
  Disable import URL field in New project form since it's hidden by default
  Remove reference to burndown charts since they don't exist for ce.
  Use master_password for Sentinel
  Refactor Discussions docs
  Start versioning cached markdown fields
  Refactor add_users method for project and group
  Improved the spec Now correctly tests against different forms
  Refactor environments components into vue files - part 3
  Adding animation for all dropdown
  fix placeholder visibility
  submodule_links: handle urls that don't end with .git
  Add help regarding vue resource and where to include it
  Append .json to ajax endpoint to prevent browser to display raw json
  Fixed the preview keyboard shortcut focusing wrong tab
  Fix broken link
  Added new discussions docs
  Started on resolvable discussions docs
  ...

submodule_links: handle urls that don't end with .git

See merge request !10799

[ci skip]

Reword backup & restore secrets description

See merge request !10753

Fix Git repository URL field on New Project page

See merge request !10803

Merge branch '31265-update-auto-deploy-documentation-for-postgres-and-private-project-support' into 'master'

Update Auto Deploy documentation

Closes #31265

See merge request !10859

Remove reference to burndown charts since they don't exist for ce.

See merge request !10861

fix placeholder visibility

Closes #30618

See merge request !10804

Use master_password for Sentinel

See merge request !10857

Start versioning cached markdown fields

Closes #30672

See merge request !10597

Refactor add_users method for project and group

See merge request !10850

discussions docs

See merge request !10390

- Move to dicsussions/index.md
- Bring back previous path with a link to new location
- Reorder sections

Fixed the preview keyboard shortcut focusing wrong tab

Closes #31101

See merge request !10849

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Now correctly tests against different forms

Based on !10841 Fix Error 500 when referencing issue with project in pending delete

Closes #31215

See merge request !10843

Refactor environments components into vue files - part 3

See merge request !10833

Fix user profile tabs showing raw json when navigating back and forward

See merge request !10352

Adding animation for all dropdown

Closes #26208

See merge request !8419

Signed-off-by: David Turner <novalis@novalis.org>

Add help regarding vue resource and where to include it

See merge request !10819

fix inline diff copying in firefox

Closes #31193

See merge request !10838

Refactor Admin::GroupsController#members_update method and add some specs

See merge request !10828