Merge pull request #718 from splitrb/update-github-workflows-ci

Update actions/checkout to v4

Author: andrehjr

.github/workflows/ci.yml

@@ -53,7 +53,7 @@ jobs:
           --health-retries 5
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: ruby/setup-ruby@v1
         with: