v0.5.0

What's Changed

• Add experimental witness-generator-spec-cli by @jsign in #290
• Add stateless input collection, export, and R2 publication flow by @jsign in #293
• Add EEST validation for public R2 stateless input batches by @jsign in #294
• feat: add --guest-artifact-base-url as workaround and zesu support by @jsign in #295

Full Changelog: v0.4.0...v0.5.0