build(deps): bump rubocop-ast from 1.1.0 to 1.1.1

Bumps [rubocop-ast](https://github.com/rubocop-hq/rubocop-ast) from 1.1.0 to 1.1.1.
- [Release notes](https://github.com/rubocop-hq/rubocop-ast/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop-ast/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-ast@v1.1.0...v1.1.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

Gemfile.lock

@@ -25,7 +25,7 @@ GEM
       rubocop-ast (>= 1.0.1)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (1.1.0)
+    rubocop-ast (1.1.1)
       parser (>= 2.7.1.5)
     ruby-progressbar (1.10.1)
     simplecov (0.19.0)