Update .github/workflows/test.yml

Author: wgtmac

.github/workflows/test.yml

@@ -65,7 +65,7 @@ jobs:
     timeout-minutes: 30
     steps:
       - name: Checkout iceberg-cpp
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        uses: actions/checkout@v6
       - name: Build Iceberg
         shell: bash
         run: ci/scripts/build_iceberg.sh $(pwd)