Bump ruby/setup-ruby from 1.144.0 to 1.144.2 (#549)

Bumps [ruby/setup-ruby](https://github.com/ruby/setup-ruby) from 1.144.0 to 1.144.2.
- [Release notes](https://github.com/ruby/setup-ruby/releases)
- [Commits](ruby/setup-ruby@9669f3e...ec02537)

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

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

Author: dependabot[bot]

.github/workflows/ruby-core.yml

@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Set up latest ruby head
-        uses: ruby/setup-ruby@9669f3ee51dc3f4eda8447ab696b3ab19a90d14b # v1.144.0
+        uses: ruby/setup-ruby@ec02537da5712d66d4d50a0f33b7eb52773b5ed1 # v1.144.2
         with:
           ruby-version: head
           bundler: none