Update rubocop-rails to version 2.33.0 (mastodon#35741)

Author: mjankowski

Gemfile.lock

@@ -789,7 +789,7 @@ GEM
       lint_roller (~> 1.1)
       rubocop (>= 1.75.0, < 2.0)
       rubocop-ast (>= 1.38.0, < 2.0)
-    rubocop-rails (2.32.0)
+    rubocop-rails (2.33.0)
       activesupport (>= 4.2.0)
       lint_roller (~> 1.1)
       rack (>= 1.1)

app/controllers/auth/registrations_controller.rb

@@ -23,11 +23,11 @@ def new
     super(&:build_invite_request)
   end
 
-  def edit # rubocop:disable Lint/UselessMethodDefinition
+  def edit
     super
   end
 
-  def create # rubocop:disable Lint/UselessMethodDefinition
+  def create
     super
   end