Update rubocop-performance requirement from ~> 1.22.0 to ~> 1.23.1 (#13)

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@v1.22.0...v1.23.1)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Erich N Quintero <[email protected]>

Author: dependabot[bot]

Gemfile

@@ -8,6 +8,6 @@ gem "bump", require: false
 gem "rake", "~> 13.0"
 gem "rspec", "~> 3.13"
 gem "rubocop", "~> 1.21", require: false
-gem "rubocop-performance", "~> 1.22.0", require: false
+gem "rubocop-performance", "~> 1.23.1", require: false
 gem "rubocop-rake", "~> 0.6.0", require: false
 gem "rubocop-rspec", "~> 3.3.0", require: false