add patch operation for express route gateway

[nimaller]

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[openapi-workflow-bot]

Hi, @nimaller Thanks for your PR. I am workflow bot for review process. Here are some small tips.

Please ensure to do self-check against checklists in first PR comment.

PR assignee is the person auto-assigned and responsible for your current PR reviewing and merging.

If there is CI failure(s), to fix CI error(s) is mandatory for PR merging; or you need to provide justification in PR comment for explanation. How to fix?

Any feedback about review process or workflow bot, pls contact swagger and tools team. [email protected]

[openapi-workflow-bot]

Hi, @nimaller Thanks for your PR. I am workflow bot for review process. Here are some small tips.

Please ensure to do self-check against checklists in first PR comment.

PR assignee is the person auto-assigned and responsible for your current PR reviewing and merging.

If there is CI failure(s), to fix CI error(s) is mandatory for PR merging; or you need to provide justification in PR comment for explanation. How to fix?

Any feedback about review process or workflow bot, pls contact swagger and tools team. [email protected]

[nimaller]

updated PR #11553