Merge "Fix codespell reported errors"

Author: Zuul

setup.cfg

@@ -60,4 +60,5 @@ tempest.test_plugins =
 quiet-level = 4
 # Words to ignore:
 # cna: Intel CNA card
-ignore-words-list = cna
+# assertIn: Python's unittest method
+ignore-words-list = cna,assertIn