Add hcp_terraform to list of expected cred types to fix failing api test CI Check (#16188)

* Add hcp_terraform to list of expected cred types to fix failing api test ci check

Author: djyasin

awx/main/tests/functional/test_credential.py

@@ -93,6 +93,7 @@ def test_default_cred_types():
             'gpg_public_key',
             'hashivault_kv',
             'hashivault_ssh',
+            'hcp_terraform',
             'insights',
             'kubernetes_bearer_token',
             'net',