build(deps): update rustls requirement from 0.21.1 to 0.22.1

[dependabot[bot]]

Updates the requirements on rustls to permit the latest version.

Release notes

Sourced from rustls's releases.

0.21.10

TLS 1.2 servers now remove session tickets after observing a failure to decrypt, preventing future resumption with the same unusable ticket.

What's Changed

• remove the TLS 1.2 session ticket on DecryptError by @​Geal in rustls/rustls#1668
• 0.21.10 release preparation by @​cpu in rustls/rustls#1678

Full Changelog: https://github.com/rustls/rustls/compare/v/0.21.9...v/0.21.10

Commits

• cf6aa80 Cargo: version 0.21.9 -> 0.21.10
• 4ee33ae version: allow manual_non_exhaustive
• f628518 remove the TLS 1.2 session ticket on DecryptError
• bbd9abc Cargo: v0.21.8 -> v0.21.9
• 5edc126 Use BorrowedCursor & BorrowedBuf from core::io
• 7abd73f Opt in to feature(core_io_borrowed_buf)
• c34477a Cargo: 0.21.7 -> 0.21.8
• 8cf2594 sign: fix clippy get-first warning
• ecc6cde Flush writers before potentially expecting a response
• 53adb9d docs: adjust ring platform compatibility
• Additional commits viewable in compare view

You can trigger a rebase of this PR 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 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)

Note Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

[dependabot[bot]]

Superseded by #171.