Update rubocop-minitest requirement from 0.38.1 to 0.38.2 (#162)

Updates the requirements on [rubocop-minitest](https://github.com/rubocop/rubocop-minitest) to permit the latest version.
- [Release notes](https://github.com/rubocop/rubocop-minitest/releases)
- [Changelog](https://github.com/rubocop/rubocop-minitest/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-minitest@v0.38.1...v0.38.2)

---
updated-dependencies:
- dependency-name: rubocop-minitest
  dependency-version: 0.38.2
  dependency-type: direct:production
...

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

Author: dependabot[bot]

Gemfile

@@ -5,6 +5,6 @@ gem "minitest", "~> 5.0"
 gem "minitest-rg", "~> 5.3"
 gem "rake", "~> 13.0"
 gem "rubocop", "1.79.1"
-gem "rubocop-minitest", "0.38.1"
+gem "rubocop-minitest", "0.38.2"
 gem "rubocop-packaging", "0.6.0"
 gem "rubocop-rake", "0.7.1"