test: lock release stale wording guard

tests/unit/test_documentation_consistency.py

@@ -486,6 +486,8 @@ class DocumentationConsistencyTests(unittest.TestCase):
             "single-set local Docker deployment",
             "Docker smoke guard coverage",
         )
+        required_stale_inventory_names = ("m1_m28_maturity_wording",)
+        required_stale_wording = ("M1-M39", "through M39", "through-M39")
         expected_release_snippets = tuple(
             snippet
             for snippets in TRAINING_M41_RELEASE_INDEX_REQUIRED_SNIPPET_INVENTORY.values()
@@ -527,7 +529,13 @@ class DocumentationConsistencyTests(unittest.TestCase):
             ],
         )
         self.assertEqual(TRAINING_M41_RELEASE_INDEX_DOC_SNIPPETS, expected_release_snippets)
+        self.assertEqual(
+            TRAINING_M41_STALE_RELEASE_INVENTORY_NAMES,
+            required_stale_inventory_names,
+        )
+        self.assertEqual(TRAINING_M41_STALE_RELEASE_WORDING, required_stale_wording)
         self.assertEqual(CURRENT_TRAINING_DOC_MATURITY_MARKER, "M1-M40")
+        self.assertEqual(CURRENT_TRAINING_DOC_MATURITY_SPAN, "through M40")
         self.assertEqual(
             CURRENT_TRAINING_DOC_MATURITY_PHRASE,
             "current product maturity through M40",
@@ -554,8 +562,8 @@ class DocumentationConsistencyTests(unittest.TestCase):
                 self.assertIn(snippet, TRAINING_M41_RELEASE_INDEX_DOC_SNIPPETS)
 
         for stale_value in (
-            *TRAINING_M41_STALE_RELEASE_INVENTORY_NAMES,
-            *TRAINING_M41_STALE_RELEASE_WORDING,
+            *required_stale_inventory_names,
+            *required_stale_wording,
         ):
             with self.subTest(stale_value=stale_value):
                 self.assertNotIn(stale_value, active_release_inventory_values)