Use actions/checkout v5 DEVOPS-2662

Author: dcrossleyau

.github/workflows/build-simpleserver.yaml

@@ -4,7 +4,7 @@ jobs:
  build:
   runs-on: ubuntu-latest
   steps:
-   - uses: actions/checkout@v4
+   - uses: actions/checkout@v5
      with:
       fetch-depth: 1
    - name: update packages