Bump parser from 3.2.2.3 to 3.2.2.4 (#68)

Bumps [parser](https://github.com/whitequark/parser) from 3.2.2.3 to 3.2.2.4.
- [Changelog](https://github.com/whitequark/parser/blob/master/CHANGELOG.md)
- [Commits](whitequark/parser@v3.2.2.3...v3.2.2.4)

---
updated-dependencies:
- dependency-name: parser
  dependency-type: indirect
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile.lock

@@ -17,7 +17,7 @@ GEM
     minitest (5.20.0)
     mqtt (0.6.0)
     parallel (1.23.0)
-    parser (3.2.2.3)
+    parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
     public_suffix (5.0.3)