Delist LicenseRef-ring, as ring no longer uses it

Before this change, we get a warning: $ cargo deny --workspace --all-features check licenses warning[license-not-encountered]: license was not encountered ┌─ /home/ek/source/repos/gitoxide/deny.toml:32:6 │ 32 │ "LicenseRef-ring", │ ━━━━━━━━━━━━━━━ unmatched license allowance licenses ok The same warning is shown in the `cargo-deny` job check on CI. This happens because `ring` no longer uses a custom/nonstandard license, instead using `Apache-2.0 AND ISC` since version 0.17.10. (See https://github.com/briansmith/ring/pull/2402 and https://crates.io/crates/ring/versions for details.) Nothing in this workspace depends directly or directly on old versions of `ring` that use that license, so this removes it from the list of licenses in `deny.toml`.

EKEliah Kagan committed 1 year ago