Bump minitest from 5.18.0 to 5.18.1

Bumps [minitest](https://github.com/minitest/minitest) from 5.18.0 to 5.18.1.
- [Changelog](https://github.com/minitest/minitest/blob/master/History.rdoc)
- [Commits](minitest/minitest@v5.18.0...v5.18.1)

---
updated-dependencies:
- dependency-name: minitest
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -49,7 +49,7 @@ GEM
       nokogiri (>= 1.12.0)
     method_source (1.0.0)
     mini_portile2 (2.8.2)
-    minitest (5.18.0)
+    minitest (5.18.1)
     minitest-reporters (1.6.0)
       ansi
       builder