Bump racc from 1.7.3 to 1.8.0 in the ruby group (#354)

Bumps the ruby group with 1 update: [racc](https://github.com/tenderlove/racc).


Updates `racc` from 1.7.3 to 1.8.0
- [Release notes](https://github.com/tenderlove/racc/releases)
- [Changelog](https://github.com/ruby/racc/blob/master/ChangeLog)
- [Commits](ruby/racc@v1.7.3...v1.8.0)

---
updated-dependencies:
- dependency-name: racc
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: ruby
...

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

Gemfile.lock

@@ -40,7 +40,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    racc (1.7.3)
+    racc (1.8.0)
     rake (13.2.1)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)