Fix movie width and frame_rate returning nil (#14357)

* Fix movie width and frame_rate returning nil

* Add StreamValidationError and raise

* Fix code style

app/services/update_account_service.rb

@@ -12,7 +12,7 @@ class UpdateAccountService < BaseService
       check_links(account)
       process_hashtags(account)
     end
-  rescue Mastodon::DimensionsValidationError => de
+  rescue Mastodon::DimensionsValidationError, Mastodon::StreamValidationError => de
     account.errors.add(:avatar, de.message)
     false
   end