Bump minitest from 5.19.0 to 5.20.0

Bumps [minitest](https://github.com/minitest/minitest) from 5.19.0 to 5.20.0.
- [Changelog](https://github.com/minitest/minitest/blob/master/History.rdoc)
- [Commits](minitest/minitest@v5.19.0...v5.20.0)

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

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

Gemfile

@@ -25,7 +25,7 @@ end
 
 # Needed to run tests
 group :development, :test do
-  gem 'minitest', '~> 5.19'
+  gem 'minitest', '~> 5.20'
   gem 'minitest-skip', '~> 0.0' # skip dummy tests
   gem 'rake', '~> 13.0'
 end

Gemfile.lock

@@ -24,7 +24,7 @@ GEM
     dry-cli (1.0.0)
     json (2.6.3)
     language_server-protocol (3.17.0.3)
-    minitest (5.19.0)
+    minitest (5.20.0)
     minitest-skip (0.0.3)
       minitest (~> 5.0)
     paint (2.3.0)
@@ -74,7 +74,7 @@ DEPENDENCIES
   commonmarker (~> 0.23)
   ctf-party (~> 2.3)
   dry-cli (~> 1.0)
-  minitest (~> 5.19)
+  minitest (~> 5.20)
   minitest-skip (~> 0.0)
   paint (~> 2.3)
   rake (~> 13.0)