Update `smoltcp` to 0.12.#488

Merged

jordens merged 4 commits intoquartiq:mainfrom

reitermarkus:update-smoltcp

Apr 30, 2026

Commits on Apr 8, 2026

Update `smoltcp` to 0.12.
reitermarkus
committed

Commits on Apr 9, 2026

Fix dependency conflicts.
reitermarkus
committed

Commits on Apr 29, 2026

Fix validation.
reitermarkus
committed

Commits on Apr 30, 2026

Remove unneeded trait bound.
reitermarkus
committed