v0.14.0

What's Changed

• add cov by @ringsaturn in #15
• Bump pyo3 from 0.18.0 to 0.18.1 by @dependabot in #16
• Fix sparse registry by @ringsaturn in #18
• add sccache support by @ringsaturn in #17
• add optional extra dep: pytz by @ringsaturn in #20

Full Changelog: v0.13.1...v0.14.0