[SPARK-51336] Upgrade upload-artifact to v4 in spark-docker repository (#81)

Author: dongjoon-hyun

.github/workflows/main.yml

@@ -323,7 +323,7 @@ jobs:
 
  - name: Test - Upload Spark on K8S integration tests log files
  if: failure()
- uses: actions/upload-artifact@v3
+ uses: actions/upload-artifact@v4
  with:
  name: spark-on-kubernetes-it-log
  path: "**/target/integration-tests.log"