Changes to line 155 of fetchOrbit.py

I've made some changes to fetchOrbit.py due to changes made by ESA based on the issue presented in https://github.com/isce-framework/isce2/pull/273#issuecomment-833967310.

contrib/stack/topsStack/fetchOrbit.py

@@ -152,7 +152,7 @@ if __name__ == '__main__':
                 tbef, taft, mission = fileToRange(os.path.basename(result))
                 if (tbef <= fileTSStart) and (taft >= fileTS):
                     matchFileName = result
-                    match = os.path.join(server[0:-5],resulturl[36:])
+                    match = resulturl
 
             if match is not None:
                 success = True