fix: correct Swagger API definitions

[ruibaby]

What this PR does / why we need it?

Refs #7605

Note: As I'm not familiar with Go, please review the changes to ensure they meet expectations. If there are any definition errors, please point them out.

Summary of your change

Please indicate you've done the following:

• Made sure tests are passing and test coverage is added if needed.
• Made sure commit message follow the rule of Conventional Commits specification.
• Considered the docs impact and opened a new docs issue or PR with docs changes if needed.

None

[f2c-ci-robot]

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[wanghe-fit2cloud]

Thanks for your support.

[lan-yonghui]

/lgtm