try fix tests

Author: ismukhin

src/utils/docker_handler.py

@@ -33,5 +33,5 @@ def run(self):
         exit_metadata = self.docker_client.api.exec_inspect(exec_instance['Id'])
         exit_code = exit_metadata['ExitCode']
         self.exit_code = exit_code if Status.has_value(exit_code) else Status.PROCESS_CMD_ERROR.value
-
+        self.return_code = self.exit_code
         self.log.info(f'Docker returncode = {self.exit_code}')