chore(deps): update bitnamilegacy/spark docker tag to v4

Author: renovate[bot]

compose.yaml

@@ -590,7 +590,7 @@ services:
       - risingwave
 
   spark-connect:
-    image: bitnamilegacy/spark:3.5.6
+    image: bitnamilegacy/spark:4.0.0
     ports:
       - 15002:15002
     command: /opt/bitnami/spark/sbin/start-connect-server.sh --name ibis_testing --packages org.apache.spark:spark-connect_2.12:3.5.3,org.apache.iceberg:iceberg-spark-runtime-3.5_2.12:1.6.1,io.delta:delta-spark_2.12:3.3.0