Update rubocop-performance requirement from = 1.16.0 to 1.19.1

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@v1.16.0...v1.19.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile

@@ -32,7 +32,7 @@ group :development do
   gem "simplecov-console", '~> 0.5',             require: false
   gem "puppet-debugger", '~> 1.0',               require: false
   gem "rubocop", '= 1.48.1',                     require: false
-  gem "rubocop-performance", '= 1.16.0',         require: false
+  gem "rubocop-performance", '1.19.1',         require: false
   gem "rubocop-rspec", '= 2.19.0',               require: false
   gem "puppet-strings", '~> 4.0',                require: false
   gem "rb-readline", '= 0.5.5',                  require: false, platforms: [:mswin, :mingw, :x64_mingw]