fix: Execute rules when a new tracking is received via the mail collector

[MyvTsv]

• 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.

Description

• It fixes !35427
• If the mail collector does not create a new ticket but creates a new follow-up, the ticket rules are not triggered.

Screenshots (if appropriate):

[stonebuzz]

@MyvTsv
you have to discuss it IRL, for me it's a big change for MaillCollector (should be target main) and it's more a feature than a bug

[trasher]

I agree with @stonebuzz . Also, forcing a ticket update when there is no update is probably not the correct way to do it (would be way better for example to just "run " rules rather than updating anything.

[cedric-anne]

The customer will not sponsor this new feature, I close the PR.