Merge pull request #24 from ruby-syntax-tree/dependabot/bundler/minitest-5.16.3

Bump minitest from 5.16.2 to 5.16.3

Author: github-actions[bot]

Gemfile.lock

@@ -13,7 +13,7 @@ GEM
     haml (5.2.2)
       temple (>= 0.8.0)
       tilt
-    minitest (5.16.2)
+    minitest (5.16.3)
     prettier_print (0.1.0)
     rake (13.0.6)
     simplecov (0.21.2)