Build(deps): Bump parser from 3.1.1.0 to 3.1.2.0

Bumps [parser](https://github.com/whitequark/parser) from 3.1.1.0 to 3.1.2.0.
- [Release notes](https://github.com/whitequark/parser/releases)
- [Changelog](https://github.com/whitequark/parser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/whitequark/parser/compare/v3.1.1.0...v3.1.2.0)

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

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

Gemfile.lock

@@ -296,7 +296,7 @@ GEM
     parallel (1.22.1)
     parallel_tests (3.8.1)
       parallel
-    parser (3.1.1.0)
+    parser (3.1.2.0)
       ast (~> 2.4.1)
     pg (1.3.5)
     progress (3.6.0)