Skip jq install if possible

This minimize the time to start the VM in the CI, making it easier to
debug startup issue, when we don't have ssh access to the guest. The
time moves to the next step preparing the VM, but it is easier to debug
that step with ssh access.

Before:
- start vm: 2m15s
- prepare vm: 15s

After:
- start vm: 1m33s
- prepare vm: 1m1s

vmnet/cidata.py

@@ -67,17 +67,19 @@ def create_user_data(vm):
             "expire": False,
         },
         "ssh_authorized_keys": public_keys(),
-        "packages": [
-            "jq",
-        ],
-        "package_update": False,
-        "package_upgrade": False,
         "runcmd": [
             "ip_address=$(ip -4 -j addr show dev vmnet0 | jq -r '.[0].addr_info[0].local')",
             f"echo > {serial_console}",
             f"echo {vm.vm_name} address: $ip_address > {serial_console}",
         ],
     }
+
+    # Skip jq install if posisble to minimize startup time in the CI.
+    if vm.distro != "ubuntu":
+        data["packages"] = ["jq"]
+        data["package_update"] = False
+        data["package_upgrade"] = False
+
     path = store.vm_path(vm.vm_name, "user-data")
     with open(path, "w") as f:
         f.write("#cloud-config\n")