Merge pull request #442 from olliebennett/dependabot/bundler/rubocop-performance-1.21.0

Bump rubocop-performance from 1.20.2 to 1.21.0

Author: olliebennett

Gemfile.lock

@@ -301,9 +301,9 @@ GEM
       rubocop (~> 1.41)
     rubocop-factory_bot (2.25.1)
       rubocop (~> 1.41)
-    rubocop-performance (1.20.2)
+    rubocop-performance (1.21.0)
       rubocop (>= 1.48.1, < 2.0)
-      rubocop-ast (>= 1.30.0, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
     rubocop-rails (2.24.1)
       activesupport (>= 4.2.0)
       rack (>= 1.1)