feat(quic): remove QUIC draft-29 version support

[tesol2y090]

Description

Remove support support_draft_version field from QUIC protocol.

https://github.com/libp2p/rust-libp2p/issues/3395

Change checklist

• [x] I have performed a self-review of my own code
• [ ] I have made corresponding changes to the documentation
• [x] I have added tests that prove my fix is effective or that my feature works
• [ ] A changelog entry has been made in the appropriate crates

[mergify[bot]]

This pull request has merge conflicts. Could you please resolve them @tesol2y090? 🙏

[tesol2y090]

Thanks @tesol2y090!

I think we should first deprecate support for draft-29 before removing it completely, see Step 1 in #3395 (comment).

What is the best way to deprecate support for draft-29, i thought remove the field is ok.

[elenaf9]

Thanks @tesol2y090! I think we should first deprecate support for draft-29 before removing it completely, see Step 1 in #3395 (comment).

What is the best way to deprecate support for draft-29, i thought remove the field is ok.

Rust offers the #[deprecated(note = "...")] attribute, which will give the user a warning (used e.g. in #3747).

To deprecate support of draft-29 (which is opt-in anyway), we only need to add this attribute to libp2p_quic::Config::support_draft_29.

Removing draft-29 and all related logic (what this PR is doing) can then be done in a follow-up PR after the next release of libp2p-quic.

[tesol2y090]

Thanks @tesol2y090! I think we should first deprecate support for draft-29 before removing it completely, see Step 1 in #3395 (comment).

What is the best way to deprecate support for draft-29, i thought remove the field is ok.

Rust offers the #[deprecated(note = "...")] attribute, which will give the user a warning (used e.g. in #3747).

To deprecate support of draft-29 (which is opt-in anyway), we only need to add this attribute to libp2p_quic::Config::support_draft_29.

Removing draft-29 and all related logic (what this PR is doing) can then be done in a follow-up PR after the next release of libp2p-quic.

Thank you @elenaf9 . I just created another https://github.com/libp2p/rust-libp2p/pull/5786 about deprecate support_draft_29