chore(deps): update actions/checkout action to v5 (#400)

Author: renovate-bot

.github/workflows/ci.yml

@@ -37,7 +37,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout repo
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Install Ruby ${{ matrix.ruby }}
       uses: ruby/setup-ruby@v1
       with: