Merge pull request #172 from redis-rb/dependabot/bundler/minitest-5.22.0

Bump minitest from 5.21.2 to 5.22.0

Author: byroot

Gemfile.lock

@@ -15,7 +15,7 @@ GEM
     hiredis (0.6.3-java)
     json (2.7.1)
     json (2.7.1-java)
-    minitest (5.21.2)
+    minitest (5.22.0)
     parallel (1.24.0)
     parser (3.3.0.5)
       ast (~> 2.4.1)