[SELC - 4393]feat: implemented new method for onboarding reject API

[gianmarcoplutino]

List of Changes

• Added new ReasonRequest Object with reasonForReject attribute
• A new method has been added so that when the onboarding request is rejected by the PagoPA operator, in addition to changing the status, the new reasonForReject field is saved on the DB Entity

Motivation and Context

This change allows you to also inform via PEC the reason why your request was rejected by the PagoPA operator

How Has This Been Tested?

the API was invoked locally and it was verified that the status was updated from TOBEVALIDATE to REJECTED and it was also verified that the new reasonForReject attribute was saved.

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 failed

Failed conditions
B Maintainability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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