bump version to 0.42.0

[arvidn]

Note

Low Risk
Low risk: this is a version bump across workspace crates and lockfile updates with no direct code/logic changes shown. Main risk is downstream compatibility if any crates rely on the previous 0.41.x versions.

Overview
Updates the workspace release to 0.42.0, aligning all in-repo crate version pins in Cargo.toml (including fuzz crates and proc-macros).

Regenerates Cargo.lock to reflect the 0.42.0 crate versions and updated intra-workspace dependency references (e.g., chia-*, clvm-*).

^{Written by Cursor Bugbot for commit 553fff3. This will update automatically on new commits. Configure here.}

[coveralls-official]

Pull Request Test Coverage Report for Build 23791535141

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 81.047%

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Totals
Change from base Build 23790322822:	0.0%
Covered Lines:	14689
Relevant Lines:	18124

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💛 - Coveralls