v1.20250807.0

What's Changed

• Implements script for creating vendored package zip for tests by @dom96 in https://github.com/cloudflare/workerd/pull/4594
• Implement FileHandle readableWebStream() by @jasnell in https://github.com/cloudflare/workerd/pull/4695
• update node.js version to v22.18.0 by @anonrig in https://github.com/cloudflare/workerd/pull/4702
• Add can disown content flag to DynamicWorkerSource by @jasnell in https://github.com/cloudflare/workerd/pull/4700
• Use new js error serialization to preserve error details by @jasnell in https://github.com/cloudflare/workerd/pull/4698

Full Changelog: https://github.com/cloudflare/workerd/compare/v1.20250806.0...v1.20250807.0