Maintenance: Bump rubocop-performance from 1.14.1 to 1.14.2

Bumps [rubocop-performance](https://github.com/rubocop/rubocop-performance) from 1.14.1 to 1.14.2.
- [Release notes](https://github.com/rubocop/rubocop-performance/releases)
- [Changelog](https://github.com/rubocop/rubocop-performance/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop/rubocop-performance/compare/v1.14.1...v1.14.2)

Gemfile.lock

@@ -472,7 +472,7 @@ GEM
       activesupport
       rubocop
       rubocop-rspec
-    rubocop-performance (1.14.1)
+    rubocop-performance (1.14.2)
       rubocop (>= 1.7.0, < 2.0)
       rubocop-ast (>= 0.4.0)
     rubocop-rails (2.14.2)