update: HrFlow connector

This is an update to an existing connector, not a new submission.
I confirm that the connector already exists on the Power Platform, and this PR is for updating existing functionality.

Checklist for the Update:

[x] The connector works as expected, and I have verified by deploying and testing all operations.
[x] I have reviewed and, if necessary, updated the detailed descriptions for all operations and parameters in the swagger file.
[x] I have ensured that all response schemas are correctly defined unless the response schema is dynamic.
[x] I validated the updated apiDefinition.swagger.json by running the paconn validate command.
[x] This is a certified connector, and I confirm that apiProperties.json has a valid brand color and does not use an invalid brand color (#007ee5 or #ffffff).

Notes:

Since this is not a first-time submission, the requirements specific to Independent Publishers or new connector submissions are not applicable.

microsoft / PowerPlatformConnectors