Update actions/checkout from v4 to v5 for Node.js 24 support

Resolves GitHub Actions deprecation warning for Node.js 20 actions.

Author: simukappu

.github/workflows/build.yml

@@ -86,7 +86,7 @@ jobs:
         options: --health-cmd mongosh --health-interval 10s --health-timeout 5s --health-retries 5
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with: