[Python] Release 0.16.0

Added

• Python 3.10 support

Fixed

• Installation error due to pyo3-built incompatibility
• Memory leak in iter_errors. #325

Changed

• Update pyo3 to 0.16.

Removed

• Support for Python 3.6

Release 0.16.0

Fixed

• Library compilation with no default features. #356
• Compilation with resolve-file only. #358

Changed

• BREAKING: Revert changes from #353 and #343, as they caused compilation issues.