[PIDM-200] Add 403 error case to openapi spec.

[a-mannia]

List of Changes

• Add 403 error case to openapi spec.

Motivation and Context

This PR aims to add the 403 status code in OpenAPI for the APIs under the authorizer because this type of error may occur when the authorizer blocks the client's request.

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

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[github-actions]

This PR exceeds the recommended size of 400 lines. Please make sure you are NOT addressing multiple issues with one PR. Note this PR might be rejected due to its size.

[a-mannia]

This PR was merged here.