Handle unapplied phased updates in testinfra checks

noble now has phased updates, in which the package repository will have
pending updates, but they won't be applied yet. We need to look for a
different message on noble to handle this change.

Fixes #7419.

molecule/testinfra/common/test_automatic_updates.py

@@ -154,12 +154,18 @@ def test_unattended_upgrades_functional(host):
         f" origin=Ubuntu,archive={distro}, origin=Ubuntu,archive={distro}-security"
         f", origin=Ubuntu,archive={distro}-updates, origin=SecureDrop,codename={distro}"
     )
-    expected_result = (
-        "No packages found that can be upgraded unattended and no pending auto-removals"
-    )
 
+    all_good = "No packages found that can be upgraded unattended and no pending auto-removals"
     assert expected_origins in c.stdout
-    assert expected_result in c.stdout
+    if distro == "focal":
+        assert all_good in c.stdout
+    else:  # noqa: PLR5501
+        if all_good in c.stdout:
+            assert all_good in c.stdout
+        else:
+            # noble+ uses phased updates, so there may be packages that can be
+            # upgraded that won't be upgraded; look for a different message in that case
+            assert "left to upgrade set()\nAll upgrades installed" in c.stdout
 
 
 @pytest.mark.parametrize(