Docker-compose: expose ports instead of publishing

With the
ports:
  - "12345"
syntax docker publishes the ports under an ephemeral port on the host.
Since these ports should presumably only be available to other services,
using expose: instead avoids publishing unnecessary services. See #1336

docker-compose.nodemicmac.yml

@@ -12,7 +12,7 @@ services:
   node-micmac-1:
     image: opendronemap/nodemicmac
     container_name: node-micmac-1
-    ports:
+    expose:
       - "3000"
     restart: unless-stopped
     oom_score_adj: 500

docker-compose.nodeodm.gpu.intel.yml

@@ -15,7 +15,7 @@ services:
     image: opendronemap/nodeodm:gpu.intel
     devices:
       - "/dev/dri"
-    ports:
+    expose:
       - "3000"
     restart: unless-stopped
     oom_score_adj: 500

docker-compose.nodeodm.gpu.nvidia.yml

@@ -11,7 +11,7 @@ services:
       - WO_DEFAULT_NODES
   node-odm:
     image: opendronemap/nodeodm:gpu
-    ports:
+    expose:
       - "3000"
     restart: unless-stopped
     oom_score_adj: 500

docker-compose.nodeodm.yml

@@ -11,7 +11,7 @@ services:
       - WO_DEFAULT_NODES
   node-odm:
     image: opendronemap/nodeodm
-    ports:
+    expose:
       - "3000"
     restart: unless-stopped
     oom_score_adj: 500

docker-compose.yml

@@ -8,7 +8,7 @@ services:
   db:
     image: opendronemap/webodm_db
     container_name: db
-    ports:
+    expose:
       - "5432"
     volumes:
       - ${WO_DB_DIR}:/var/lib/postgresql/data:Z