Attempt fixing deadlocks by moving account stats update outside trans…

…action (mastodon#9437)

* Use `update_column` instead of `update_attribute` in callback

`update_attribute` would normally cause callbacks to be called.
Called from a callback, it seems to stop further callbacks from executing.

`update_column` does the same work, but without calling callbacks or
preventing other callbacks from executing.

* Fix deadlocks by moving account stats update outside transaction

app/models/status.rb

@@ -239,8 +239,8 @@ def decrement_count!(key)
     update_status_stat!(key => [public_send(key) - 1, 0].max)
   end
 
-  after_create  :increment_counter_caches
-  after_destroy :decrement_counter_caches
+  after_create_commit  :increment_counter_caches
+  after_destroy_commit :decrement_counter_caches
 
   after_create_commit :store_uri, if: :local?
   after_create_commit :update_statistics, if: :local?
@@ -429,7 +429,7 @@ def update_status_stat!(attrs)
   end
 
   def store_uri
-    update_attribute(:uri, ActivityPub::TagManager.instance.uri_for(self)) if uri.nil?
+    update_column(:uri, ActivityPub::TagManager.instance.uri_for(self)) if uri.nil?
   end
 
   def prepare_contents