Bump node-notifier and fluid-testem

Bumps [node-notifier](https://github.com/mikaelbr/node-notifier) to 10.0.1 and updates ancestor dependency [fluid-testem](https://github.com/fluid-project/fluid-testem). These dependencies need to be updated together.


Updates `node-notifier` from 5.4.5 to 10.0.1
- [Changelog](https://github.com/mikaelbr/node-notifier/blob/master/CHANGELOG.md)
- [Commits](mikaelbr/node-notifier@v5.4.5...v10.0.1)

Updates `fluid-testem` from 2.1.15 to 2.2.1
- [Release notes](https://github.com/fluid-project/fluid-testem/releases)
- [Commits](fluid-project/fluid-testem@v2.1.15...v2.2.1)

---
updated-dependencies:
- dependency-name: node-notifier
  dependency-type: indirect
- dependency-name: fluid-testem
  dependency-type: direct:development
...

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

Author: dependabot[bot]