Sync Bunfig Schema with Latest Docs

[TurtIeSocks]

Summary

This PR updates Bun configuration support to match the latest bunfig.toml docs.

What Changed

• Updated bunfig JSON schema with newly documented options.
• Updated bunfig TOML test fixture to include examples for the new fields.

New Schema Coverage

• Top-level:
  • env (boolean or object with file)
  • console.depth
• [test]:
  • pathIgnorePatterns
  • randomize
  • seed
  • rerunEach
  • retry
  • concurrentTestGlob
  • onlyFailures
  • [test.reporter].dots
  • [test.reporter].junit
• [install]:
  • linkWorkspacePackages

Validation

• jq empty src/schemas/json/bunfig.json
• node ./cli.js check

Closes #4797
In regards to #4923, I could not find documentation for this property.

[github-actions]

Thanks for the PR!

This section of the codebase is owned by @madskristensen and @hyperupcall - if they write a comment saying "LGTM" then it will be merged.