Speed up OCI Modify entry by deferring backup probes and reusing verified config

.github/scripts/tests/test_oci_update_preservation_wording.py

@@ -130,6 +130,7 @@ class UpdateWording(unittest.TestCase):
         reconcile.propose = lambda *args: None
         scope = {'sys': SimpleNamespace(path=[], executable='python3'),
                  'translate': lambda text: text, 'check_selected': lambda project, row: row,
+                 '_selected_configuration': lambda vmid: instances.command('pct', 'config', str(vmid)),
                  'images': SimpleNamespace(offer_removal=lambda *args: None),
                  'carry_records': lambda project, **options: {},
                  '_work_backup_ready': lambda project, ui, vmid: True,

.github/workflows/test-oci-registries.yml

@@ -32,3 +32,7 @@ jobs:
         env:
           PYTHONDONTWRITEBYTECODE: '1'
         run: python3 -m unittest discover -s oci/tests -p 'test_registry_*.py' -v
+      - name: Run OCI Modify latency regressions
+        env:
+          PYTHONDONTWRITEBYTECODE: '1'
+        run: python3 -m unittest discover -s oci/tests -p test_modify_latency.py -v