Bump simplecov from 0.21.2 to 0.22.0 (#22773)

Bumps [simplecov](https://github.com/simplecov-ruby/simplecov) from 0.21.2 to 0.22.0.
- [Release notes](https://github.com/simplecov-ruby/simplecov/releases)
- [Changelog](https://github.com/simplecov-ruby/simplecov/blob/main/CHANGELOG.md)
- [Commits](https://github.com/simplecov-ruby/simplecov/compare/v0.21.2...v0.22.0)

---
updated-dependencies:
- dependency-name: simplecov
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -127,7 +127,7 @@ group :test do
   gem 'rails-controller-testing', '~> 1.0'
   gem 'rspec_junit_formatter', '~> 0.6'
   gem 'rspec-sidekiq', '~> 3.1'
-  gem 'simplecov', '~> 0.21', require: false
+  gem 'simplecov', '~> 0.22', require: false
   gem 'webmock', '~> 3.18'
 end