dataconnect.yml: use actions/checkout@v3v4

Author: dconeybe

.github/workflows/dataconnect.yml

@@ -43,7 +43,7 @@ jobs:
           - 5432:5432
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         show-progress: false
 
       - uses: actions/setup-java@v4