chore: use lightweight deletes for squash job cleanup in overrides ta…

…ble (#28226)

dags/person_overrides.py

@@ -198,7 +198,7 @@ def overrides_delete_mutation_runner(self) -> MutationRunner:
         return MutationRunner(
             PERSON_DISTINCT_ID_OVERRIDES_TABLE,
             f"""
-            DELETE WHERE
+            DELETE FROM {PERSON_DISTINCT_ID_OVERRIDES_TABLE} WHERE
                 isNotNull(dictGetOrNull(%(name)s, 'version', (team_id, distinct_id)) as snapshot_version)
                 AND snapshot_version >= version
             """,