Bump gulp-notify from 2.2.0 to 5.0.0

Bumps [gulp-notify](https://github.com/mikaelbr/gulp-notify) from 2.2.0 to 5.0.0.
- [Release notes](https://github.com/mikaelbr/gulp-notify/releases)
- [Changelog](https://github.com/mikaelbr/gulp-notify/blob/master/CHANGELOG.md)
- [Commits](mikaelbr/gulp-notify@v2.2.0...v5.0.0)

---
updated-dependencies:
- dependency-name: gulp-notify
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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