Resolve "Update containerlab_slim.clab.yaml for recent changes in gNMI-Target"

See merge request !497

dev_env_data/clab/gosdn_slim.clab.yaml

@@ -31,6 +31,8 @@ topology:
       image: gnmi-target
       ports:
         - 7030:7030
+      cmd: 
+        start --log debug --insecure true
       mgmt-ipv4: 172.100.0.11
       startup-delay: 5
 
@@ -39,6 +41,8 @@ topology:
       image: gnmi-target
       ports:
         - 7031:7030
+      cmd: 
+        start --log debug --insecure true
       mgmt-ipv4: 172.100.0.12
       startup-delay: 5