doc: Add API contract for the PATCH /requests/:id endpoint for OOO request

[surajmaity1]

Issue Description

The documentation should have an API contract for the PATCH /requests/:id endpoint of the OOO request.

Expected Behavior

The API contract must contain information for PATCH /requests/:id endpoint for the OOO request.

Current Behavior

The API contract does not contain information for the PATCH /requests/:id endpoint for the OOO request.

Screenshots

Reproducibility

• This issue is reproducible
• This issue is not reproducible

Steps to Reproduce

Severity/Priority

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• High
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• Low

Checklist

• I have read and followed the project's code of conduct.
• I have searched for similar issues before creating this one.
• I have provided all the necessary information to understand and reproduce the issue.
• I am willing to contribute to the resolution of this issue.