Merge pull request #959 from alphagov/dependabot/github_actions/ruby/setup-ruby-1.288.0

Bump ruby/setup-ruby from 1.286.0 to 1.288.0

Author: nimalank7

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-    - uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
+    - uses: ruby/setup-ruby@09a7688d3b55cf0e976497ff046b70949eeaccfd # v1.288.0
       with:
         bundler-cache: true
     - run: GOVUK_DOCKER_DIR=. make test-ci