Merge pull request #29 from github/dependabot/github_actions/actions/checkout-4

Bump actions/checkout from 3 to 4

Author: yoannchaudet

.github/workflows/cibuild.yaml

@@ -9,7 +9,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ matrix.ruby }}