Bump rubocop-performance from 1.4.1 to 1.5.0 (#26)

Bumps [rubocop-performance](https://github.com/rubocop-hq/rubocop-performance) from 1.4.1 to 1.5.0.
- [Release notes](https://github.com/rubocop-hq/rubocop-performance/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-performance/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-performance@v1.4.1...v1.5.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Gemfile.lock

@@ -89,7 +89,7 @@ GEM
       rainbow (>= 2.2.2, < 4.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 1.7)
-    rubocop-performance (1.4.1)
+    rubocop-performance (1.5.0)
       rubocop (>= 0.71.0)
     ruby-progressbar (1.10.1)
     rubyzip (2.0.0)