build(deps-dev): update rubocop-performance requirement

Updates the requirements on [rubocop-performance](https://github.com/rubocop/rubocop-performance) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop-performance/releases)
- [Changelog](https://github.com/rubocop/rubocop-performance/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-performance@v1.17.1...v1.18.0)

---
updated-dependencies:
- dependency-name: rubocop-performance
  dependency-type: direct:development
...

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

Gemfile

@@ -31,7 +31,7 @@ group :development do
     gem "rubocop", "1.51.0"
     gem "rubocop-minitest", "0.31.0"
     gem "rubocop-packaging", "0.5.2"
-    gem "rubocop-performance", "1.17.1"
+    gem "rubocop-performance", "1.18.0"
     gem "rubocop-rake", "= 0.6.0"
     gem "rubocop-shopify", "2.13.0"
   end