chore(deps): update actions/checkout digest to 0ad4b8f (#322)

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

Author: renovate[bot]

.github/workflows/pull_request.yml

@@ -14,7 +14,7 @@ jobs:
         ruby: [ '3.1', '3.2', '3.3' ]
     name: Ruby v${{ matrix.ruby }}
     steps:
-    - uses: actions/checkout@1d96c772d19495a3b5c517cd2bc0cb401ea0529f # v4
+    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
     - uses: ruby/setup-ruby@v1
       with:
         ruby-version: ${{ matrix.ruby }}