test: align admin tsa feature payload

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

tests/integration/features/admin/tsa.feature

@@ -5,7 +5,7 @@ Feature: TSA Administration - Core Configuration
 
     When sending "post" to ocs "/apps/libresign/api/v1/admin/tsa"
       | tsa_url       | <TSA_URL> |
-      | tsa_policy    | 1.2.3.4.1               |
+      | tsa_policy_oid | 1.2.3.4.1              |
       | tsa_auth_type | none                    |
     Then the response should have a status code 200
     And the response should be a JSON array with the following mandatory values