fix(gce): fix how gce checks for an operation done (#440)

Previous implementation relied on the __repr__ or __str__ representation
of an internal google sdk enum, which, under some versions of the sdk is
`Status.DONE` and under others is an integer. Running cloud-init
integration tests with Python 3.12.3 raises:

E pycloudlib.errors.PycloudlibError: Expected DONE state, but found
2104194 after waiting 300 seconds. Check GCE console for more details.

Use the enum variant DONE for proper comparison. Both,
ZoneOperationsClient[0] and GlobalOperationsClient[1]'s get method
return an instance of Operation[2] which has an instance of Status[3] as
status property.

Refs:

[0]
https://cloud.google.com/python/docs/reference/compute/1.11.0/google.cloud.compute_v1.services.zone_operations.ZoneOperationsClient#google_cloud_compute_v1_services_zone_operations_ZoneOperationsClient_get
[1]
https://cloud.google.com/python/docs/reference/compute/1.11.0/google.cloud.compute_v1.services.global_operations.GlobalOperationsClient#google_cloud_compute_v1_services_global_operations_GlobalOperationsClient_get
[2]
https://cloud.google.com/python/docs/reference/compute/1.11.0/google.cloud.compute_v1.types.operation
[3]
https://cloud.google.com/python/docs/reference/compute/1.11.0/google.cloud.compute_v1.types.Operation.Status

VERSION

@@ -1 +1 @@
-1!10.0.3
+1!10.0.4

pycloudlib/gce/cloud.py

@@ -542,7 +542,7 @@ def _wait_for_operation(
             except GoogleAPICallError as e:
                 raise_on_error(e)
             else:
-                if str(response.status) == "Status.DONE":
+                if response.status == compute_v1.types.Operation.Status.DONE:
                     break
             time.sleep(1)
         else: