build(deps): bump divan from 0.1.15 to 0.1.21 (#3845)

Bumps [divan](https://github.com/nvzqz/divan) from 0.1.15 to 0.1.21.
- [Changelog](https://github.com/nvzqz/divan/blob/main/CHANGELOG.md)
- [Commits](nvzqz/divan@v0.1.15...v0.1.21)

---
updated-dependencies:
- dependency-name: divan
  dependency-version: 0.1.21
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]