chore(deps): bump minitest from 5.23.1 to 5.24.0 in /dev-client

Bumps [minitest](https://github.com/minitest/minitest) from 5.23.1 to 5.24.0.
- [Changelog](https://github.com/minitest/minitest/blob/master/History.rdoc)
- [Commits](minitest/minitest@v5.23.1...v5.24.0)

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

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

dev-client/Gemfile.lock

@@ -76,7 +76,7 @@ GEM
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
     json (2.7.2)
-    minitest (5.23.1)
+    minitest (5.24.0)
     molinillo (0.8.0)
     mutex_m (0.2.0)
     nanaimo (0.3.0)