Bump divviup-client from 0.4.15 to 0.4.16 (#3517)

Bumps [divviup-client](https://github.com/divviup/divviup-api) from 0.4.15 to 0.4.16.
- [Release notes](https://github.com/divviup/divviup-api/releases)
- [Commits](divviup/divviup-api@0.4.15...0.4.16)

---
updated-dependencies:
- dependency-name: divviup-client
  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>