Bump @speckle/viewer from 2.17.16 to 2.22.1

Bumps [@speckle/viewer](https://github.com/specklesystems/speckle-server/tree/HEAD/packages/viewer) from 2.17.16 to 2.22.1.
- [Release notes](https://github.com/specklesystems/speckle-server/releases)
- [Commits](https://github.com/specklesystems/speckle-server/commits/2.22.1/packages/viewer)

---
updated-dependencies:
- dependency-name: "@speckle/viewer"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>