Fix validationresponse ticket close

[Lainow]

Checklist before requesting a review

Please delete options that are not relevant.

• I have read the CONTRIBUTING document.
• I have performed a self-review of my code.
• I have added tests that prove my fix is effective or that my feature works.
• This change requires a documentation update.

Description

• It fixes !35135
• Here is a brief description of what this PR does

When the ticket is closed and there are validation requests waiting for a response, it is still possible to validate them, but this does not update the global status.

So I deactivated the possibility of accepting a validation request once the ticket has been closed.

Screenshots (if appropriate):

Before

After

[cedric-anne]

I am not sure we should accept answer to validation requests once a ticket is closed.

[Lainow]

I am not sure we should accept answer to validation requests once a ticket is closed.

Yes, I forgot to mention this in the description, but I've deactivated it now.

[Rom1-B]

Seems OK.

Perhaps we should also exclude tickets closed on the “Tickets waiting for your approval” counter and its associated search:

EDIT: There are also native dashboard cards:

[AdrienClairembault]

Seems OK, you just need to take Change into account.
Also, the new behaviors could be tested.