fix(fleet): park-lab stack points at server "park-lab"

The lab box's Periphery onboarded as park-lab (the earlier park-test
name was from the first, discarded install attempt).

Claude-Session: https://claude.ai/code/session_01Xcm6ikLgGoCxxHrxtjkk5V

komodo/resources.toml

@@ -40,7 +40,7 @@
 [[stack]]
 name = "park-lab"
 [stack.config]
-server = "park-test"
+server = "park-lab"
 git_provider = "git.infra.msai.al"
 git_account = "komodo"
 repo = "mca/parking_solution"