Merge upstream changes

Port d1b057a0ac to glitch-soc

Port b46125224c to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

* Change repo from mastodon/mastodon to glitch-soc/mastodon

Signed-off-by: Plastikmensch <plastikmensch@users.noreply.github.com>

* Remove repo check from build-image workflow

Reverts 0b8b0ef652

Signed-off-by: Plastikmensch <plastikmensch@users.noreply.github.com>

---------

Signed-off-by: Plastikmensch <plastikmensch@users.noreply.github.com>

Merge upstream changes

Port 0a9def5498 to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

Conflicts:
- `app/models/status.rb`:
  Upstream added lines close to a glitch-soc only line, not a real conflict.
  Applied upstream's changes (added hooks) while keeping glitch-soc's changes
  (`local_only` scope).
- `config/environments/production.rb`:
  Upstream removed a header, while we have glitch-soc specific ones.
  Removed the header removed upstream.

Co-authored-by: Effy Elden <effy@effy.space>