chore(deps): update ruby/setup-ruby action to v1.306.0 (#280)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/gem-release.yml

@@ -23,7 +23,7 @@ jobs:
         with:
           ref: ${{ github.event.release.tag_name || inputs.tag }}
 
-      - uses: ruby/setup-ruby@0cb964fd540e0a24c900370abf38a33466142735 # v1.305.0
+      - uses: ruby/setup-ruby@c4e5b1316158f92e3d49443a9d58b31d25ac0f8f # v1.306.0
       - run: bundle install
 
       - name: Build Gem