Bump minitest-parallel_fork from 2.0.0 to 2.1.0

Bumps [minitest-parallel_fork](https://github.com/jeremyevans/minitest-parallel_fork) from 2.0.0 to 2.1.0.
- [Changelog](https://github.com/jeremyevans/minitest-parallel_fork/blob/master/CHANGELOG)
- [Commits](jeremyevans/minitest-parallel_fork@2.0.0...2.1.0)

---
updated-dependencies:
- dependency-name: minitest-parallel_fork
  dependency-version: 2.1.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Gemfile.lock

@@ -13,7 +13,7 @@ GEM
     lint_roller (1.1.0)
     mini_portile2 (2.8.8)
     minitest (5.25.5)
-    minitest-parallel_fork (2.0.0)
+    minitest-parallel_fork (2.1.0)
       minitest (>= 5.15.0)
     nokogiri (1.17.2)
       mini_portile2 (~> 2.8.2)