Use assertRaisesRegex in unit test (#80663)

test/units/cli/test_vault.py

@@ -171,7 +171,7 @@ class TestVaultCli(unittest.TestCase):
         mock_setup_vault_secrets.return_value = [('default', TextVaultSecret('password'))]
         cli = VaultCLI(args=['ansible-vault', 'create', '/dev/null/foo'])
         cli.parse()
-        self.assertRaisesRegexp(errors.AnsibleOptionsError,
+        self.assertRaisesRegex(errors.AnsibleOptionsError,
                                "not a tty, editor cannot be opened",
                                cli.run)