0.43.0

What's Changed

• remove map_pyerr_w_ptr by @arvidn in #1427
• fix error in crates/chia-protocol/Cargo.toml by @arvidn in #1428
• bump chia-pos2 dependency to 0.4.2 by @arvidn in #1417
• improve error reporting in python by @arvidn in #1430
• fix mypy issue by @arvidn in #1433
• Remove (largely) unused NodePtr from ValidationError by @arvidn in #1432
• update chia-pos2 to the latest version, 0.6.0 by @arvidn in #1441
• make the ValidationErr closer to a proper rust error type by @arvidn in #1445
• bump version to 0.43.0 by @arvidn in #1446

Full Changelog: 0.42.1...0.43.0