Bump diff and tap

Bumps [diff](https://github.com/kpdecker/jsdiff) to 4.0.2 and updates ancestor dependency [tap](https://github.com/tapjs/node-tap). These dependencies need to be updated together.


Updates `diff` from 1.4.0 to 4.0.2
- [Release notes](https://github.com/kpdecker/jsdiff/releases)
- [Changelog](https://github.com/kpdecker/jsdiff/blob/master/release-notes.md)
- [Commits](kpdecker/jsdiff@v1.4.0...v4.0.2)

Updates `tap` from 12.7.0 to 16.3.0
- [Release notes](https://github.com/tapjs/node-tap/releases)
- [Commits](tapjs/tapjs@v12.7.0...v16.3.0)

---
updated-dependencies:
- dependency-name: diff
  dependency-type: indirect
- dependency-name: tap
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>