v0.12.4

What's Changed

• Bump anyhow from 1.0.50 to 1.0.51 by @dependabot in #717
• init: new command similar to cargo init by @davidhewitt in #719
• Don't package non-path-dep crates in sdist for workspaces by @messense in #720
• Update keyring to 1.0.0 by @messense in #721
• Build release packages with password-storage feature by @messense in #725
• Reorganize upload feature by @messense in #726
• Add support for x86_64 DragonFly BSD by @messense in #727
• Limit concurrency on GitHub Actions by @messense in #728
• Allow pip warnings in maturin develop command by @messense in #732
• Add a Python import hook by @messense in #729

Full Changelog: v0.12.3...v0.12.4