Merge pull request #11 from gitgitgadget/dependabot/github_actions/actions/checkout-5

build(deps): bump actions/checkout from 4 to 5

Author: dscho

.github/workflows/keepalive.yml

@@ -14,7 +14,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           persist-credentials: 'true'
       - name: Merge the upstream default branch