Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `.env.production.sample`:
  Copied upstream changes.
- `app/controllers/settings/identity_proofs_controller.rb`:
  Minor conflict due to glitch-soc's extra “enable_keybase” setting.
  Upstream removed keybase support altogether, so did the same.
- `app/controllers/well_known/keybase_proof_config_controller.rb`:
  Minor conflict due to glitch-soc's extra “enable_keybase” setting.
  Upstream removed keybase support altogether, so did the same.
- `lib/mastodon/statuses_cli.rb`:
  Minor conflict due to an optimization that wasn't shared between
  the two versions. Copied upstream's version.

Gemfile.lock

@@ -104,7 +104,7 @@ GEM
       debug_inspector (>= 0.0.1)
     blurhash (0.1.5)
       ffi (~> 1.14)
-    bootsnap (1.9.1)
+    bootsnap (1.9.3)
       msgpack (~> 1.0)
     brakeman (5.1.2)
     browser (4.2.0)
@@ -599,7 +599,7 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.4.0)
+    sprockets-rails (3.4.1)
       actionpack (>= 5.2)
       activesupport (>= 5.2)
       sprockets (>= 3.0.0)
@@ -690,7 +690,7 @@ DEPENDENCIES
   better_errors (~> 2.9)
   binding_of_caller (~> 1.0)
   blurhash (~> 0.1)
-  bootsnap (~> 1.9.1)
+  bootsnap (~> 1.9.2)
   brakeman (~> 5.1)
   browser
   bullet (~> 6.1)