Merge pull request #886 from alphagov/dependabot/github_actions/ruby/setup-ruby-1.257.0

Bump ruby/setup-ruby from 1.256.0 to 1.257.0

Author: dj-maisy

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-    - uses: ruby/setup-ruby@efbf473cab83af4468e8606cc33eca9281bb213f # v1.256.0
+    - uses: ruby/setup-ruby@44511735964dcb71245e7e55f72539531f7bc0eb # v1.257.0
       with:
         bundler-cache: true
     - run: GOVUK_DOCKER_DIR=. make test-ci