new: dev: [postgres] ``db_docker_opts`` now requires to set the network

This should probably done in ``compose`` TBH.

postgres/lib/common

@@ -35,7 +35,7 @@ is_db_locked() {
 _set_db_params() {
     local docker_ip="$1" docker_network="$2"
 
-    export db_docker_opts="-e PGHOST=$docker_ip -e PGUSER=postgres"
+    export db_docker_opts="--network $docker_network -e PGHOST=$docker_ip -e PGUSER=postgres"
     export db_cmd_opts=
 }