Maintenance: Update dependency rubocop-rails to v2.30.3

Gemfile.lock

@@ -647,7 +647,7 @@ GEM
       lint_roller (~> 1.1)
       rubocop (>= 1.72.1, < 2.0)
       rubocop-ast (>= 1.38.0, < 2.0)
-    rubocop-rails (2.30.2)
+    rubocop-rails (2.30.3)
       activesupport (>= 4.2.0)
       lint_roller (~> 1.1)
       rack (>= 1.1)