chore(deps): bump rustls from 0.20.6 to 0.23.4

[dependabot[bot]]

Bumps rustls from 0.20.6 to 0.23.4.

Commits

• 1dee8b1 Prepare 0.23.4
• 3a03df6 Correct further dead_code warnings
• d8a0f94 Fix new clippy::use_self warnings
• 3185d7f examples: fix server acceptor alert write behaviour
• b5a8cef server: add AcceptedAlert::write_all
• e06c9fe server: improve AcceptedAlert::write documentation
• a7d2ad6 Test that reproduces the problem
• 9f3adc7 Map SignatureScheme::ECDSA_SHA1_Legacy to SignatureAlgorithm::ECDSA
• d633942 Move MockServerVerifier to tests::common
• 667482a Add path dependency for rustls-post-quantum
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot merge will merge this PR after your CI passes on it
• @dependabot squash and merge will squash and merge this PR after your CI passes on it
• @dependabot cancel merge will cancel a previously requested merge and block automerging
• @dependabot reopen will reopen this PR if it is closed
• @dependabot close will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)