Swift Crypto 4.3.0

What's Changed

SemVer Minor

• Add support for encrypted PEM keys via BoringSSL by @fpseverino in #428

Other Changes

• switch from main to 0.0.7 for swiftlang workflows by @rnro in #430
• update actions/checkout from v4 to v6 by @rnro in #431

Full Changelog: 4.2.0...4.3.0