Bump simplecov from 0.21.2 to 0.22.0

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](simplecov-ruby/simplecov@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>

Author: dependabot[bot]

Gemfile.lock

@@ -12,7 +12,7 @@ GEM
     minitest (5.16.3)
     prettier_print (1.1.0)
     rake (13.0.6)
-    simplecov (0.21.2)
+    simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)