Bump regexp_parser from 2.0.3 to 2.1.1

Bumps [regexp_parser](https://github.com/ammar/regexp_parser) from 2.0.3 to 2.1.1.
- [Release notes](https://github.com/ammar/regexp_parser/releases)
- [Changelog](https://github.com/ammar/regexp_parser/blob/master/CHANGELOG.md)
- [Commits](ammar/regexp_parser@v2.0.3...v2.1.1)

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

Author: dependabot-preview[bot]

Gemfile.lock

@@ -16,7 +16,7 @@ GEM
       ast (~> 2.4.1)
     rainbow (3.0.0)
     rake (13.0.3)
-    regexp_parser (2.0.3)
+    regexp_parser (2.1.1)
     rexml (3.2.4)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)