sweep: #8011 fix: Adapt AREXCE arc7 delegation new response

Author: aldbr

src/DIRAC/Resources/Computing/AREXComputingElement.py

@@ -304,7 +304,7 @@ def __generateDelegationID(self):
         if not delegationURL:
             return S_ERROR(f"Cannot extract delegation ID from the response: {response.headers}")
 
-        delegationID = delegationURL.split("new/")[-1]
+        delegationID = delegationURL.split("/")[-1]
         certificateSigningRequestData = response.text
         return S_OK((delegationID, certificateSigningRequestData))