add ingestor to dem stack, remove duplicate entry

docker-compose.dem.yml

@@ -153,6 +153,16 @@ services:
     image: registry.gitlab.eox.at/esa/prism/vs/pvs_client:latest
     deploy:
       replicas: 1
+  ingestor:
+    image: registry.gitlab.eox.at/esa/prism/vs/pvs_ingestor:latest
+    env_file:
+      - env/dem_redis.env
+    environment:
+      INSTANCE_ID: "prism-view-server_ingestor"
+    deploy:
+      replicas: 1
+    networks:
+      - intnet
 configs:
   init-db:
     file: ./config/dem_init-db.sh

docker-compose.vhr18.yml

@@ -163,10 +163,6 @@ services:
     image: registry.gitlab.eox.at/esa/prism/vs/pvs_client:latest
     deploy:
       replicas: 1
-  ingestor:
-    image: registry.gitlab.eox.at/esa/prism/vs/pvs_ingestor:latest
-    deploy:
-      replicas: 1
 configs:
   init-db:
     file: ./config/vhr18_init-db.sh