Merge pull request #2321 from ruby/dependabot/bundler/minitest-5.25.5

Bump minitest from 5.25.4 to 5.25.5

Author: soutaro

Gemfile.lock

@@ -61,7 +61,7 @@ GEM
     marcel (1.0.4)
     memory_profiler (1.1.0)
     mini_portile2 (2.8.8)
-    minitest (5.25.4)
+    minitest (5.25.5)
     mutex_m (0.3.0)
     net-protocol (0.2.2)
       timeout