Update actions/checkout digest to 0ad4b8f

Author: renovate[bot]

.github/workflows/rake.yml

@@ -16,7 +16,7 @@ jobs:
         ruby: [2.7, 3.1]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@1d96c772d19495a3b5c517cd2bc0cb401ea0529f # v4
+      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}