Bump ruby/setup-ruby from 1.286.0 to 1.288.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.286.0 to 1.288.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@90be115...09a7688)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.288.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8
+        uses: ruby/setup-ruby@09a7688d3b55cf0e976497ff046b70949eeaccfd
         with:
           ruby-version: '3.2'
           bundler-cache: true