Fix e2e test which declarations not in self-managed

What does this MR do and why?

1、Fix e2e test which self-managed does not support declarations

2、Finish later：Add other specified testcases to override declarations scenarios on SaaS

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

/cc @prajnamas