Disable Lima automatic port forwarding for sandbox

Lima auto-forwards ports from the VM to localhost, which blocks local
development on the same ports (e.g. localhost:8080). Services are
already accessible via the VM IP shown by `sandbox.sh status`.

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

contrib/lima/probo.yaml

@@ -23,6 +23,8 @@ networks:
 
 mounts: []
 
+portForwards: []
+
 ssh:
   forwardAgent: true