[Feature]: support PMTU

[Kulsk]

Before request a new feature

• [X] I have searched the issues of this repository and believe that this is not a duplicate.

Describe the feature you'd like supported

support PMTU probes:

https://datatracker.ietf.org/doc/html/rfc9000#section-14.4

Describe alternatives you've considered

No response

Additional context

No response