RUSTSEC-2025-0007: *ring* is unmaintained

[github-actions]

ring is unmaintained

Details
Status	unmaintained
Package	ring
Version	0.17.10
URL	briansmith/ring#2414
Date	2025-02-20

The author has announced an indefinite hiatus in its development, noting that
any reported security vulnerabilities may go unaddressed for prolonged periods
of time.

See advisory page for additional details.

[viccuad]

Closing, the advisory has been retracted; ring is now maintained by the rustls team and will get security (only) updates.

[flavio]

Thanks for having closed it, we definitely have to put some efforts into moving away from ring. I've updated #307 to reflect that