23.4.0

What's Changed

• Simplify hazmat feature docs by @leighmcculloch in #1643
• Fix patch logic to include workspace root Cargo.toml by @leighmcculloch in #1646
• Use ubuntu-slim for complete job runner by @leighmcculloch in #1651
• Add safety notes about docs fields in soroban-spec-rust by @leighmcculloch in #1650
• Make trait functions that have default implementations callable by @leighmcculloch in #1507
• Accept custom snapshot sources in Env::from_ledger_snapshot by @leighmcculloch in #1620
• Bump version to 23.4.0 by @github-actions[bot] in #1654

Full Changelog: v23.3.0...v23.4.0