Merge pull request #218 from ruby-syntax-tree/dependabot/bundler/syntax_tree-6.2.0

Bump syntax_tree from 6.1.1 to 6.2.0

Author: github-actions[bot]

Gemfile.lock

@@ -8,7 +8,7 @@ GEM
     rake (13.0.6)
     rexml (3.2.5)
     rouge (4.1.3)
-    syntax_tree (6.1.1)
+    syntax_tree (6.2.0)
       prettier_print (>= 1.2.0)
     test-unit (3.6.1)
       power_assert