Enable dataprep health check for examples (#1800)

Signed-off-by: letonghan <letong.han@intel.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

MultimodalQnA/docker_compose/intel/cpu/xeon/compose.yaml

@@ -52,6 +52,11 @@ services:
       HUGGINGFACEHUB_API_TOKEN: ${HUGGINGFACEHUB_API_TOKEN}
       MULTIMODAL_DATAPREP: true
       DATAPREP_COMPONENT_NAME: "OPEA_DATAPREP_MULTIMODALREDIS"
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:5000/v1/health_check || exit 1"]
+      interval: 10s
+      timeout: 5s
+      retries: 10
     restart: unless-stopped
   embedding-multimodal-bridgetower:
     image: ${REGISTRY:-opea}/embedding-multimodal-bridgetower:${TAG:-latest}
@@ -145,11 +150,16 @@ services:
     image: ${REGISTRY:-opea}/multimodalqna:${TAG:-latest}
     container_name: multimodalqna-backend-server
     depends_on:
-      - redis-vector-db
-      - dataprep-multimodal-redis
-      - embedding
-      - retriever-redis
-      - lvm
+      redis-vector-db:
+        condition: service_started
+      dataprep-multimodal-redis:
+        condition: service_healthy
+      embedding:
+        condition: service_started
+      retriever-redis:
+        condition: service_started
+      lvm:
+        condition: service_started
     ports:
       - "${MEGA_SERVICE_PORT}:${MEGA_SERVICE_PORT}"
     environment: