Bump ruby/setup-ruby from 1.277.0 to 1.278.0

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.277.0 to 1.278.0.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Changelog](https://github.com/ruby/setup-ruby/blob/master/release.rb)
- [Commits](ruby/setup-ruby@8a836ef...4c24fa5)

---
updated-dependencies:
- dependency-name: ruby/setup-ruby
  dependency-version: 1.278.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -36,7 +36,7 @@ jobs:
 
       - name: Set up Ruby
         if: ${{ matrix.platform != 'windows-latest' }}
-        uses: ruby/setup-ruby@8a836efbcebe5de0fe86b48a775b7a31b5c70c93  #v1.277.0
+        uses: ruby/setup-ruby@4c24fa5ec04b2e79eb40571b1cee2a0d2b705771  #v1.278.0
         with:
           ruby-version: 3.3 # See also devcontainer