Merge pull request #97 from ruby-syntax-tree/dependabot/bundler/minitest-6.0.0

Bump minitest from 5.27.0 to 6.0.0

Author: github-actions[bot]

Gemfile.lock

@@ -9,8 +9,10 @@ GEM
   remote: https://rubygems.org/
   specs:
     docile (1.4.0)
-    minitest (5.27.0)
+    minitest (6.0.0)
+      prism (~> 1.5)
     prettier_print (1.2.1)
+    prism (1.6.0)
     rake (13.3.1)
     simplecov (0.22.0)
       docile (~> 1.1)