Bump proto-plus from 1.19.5 to 1.19.6
Bump proto-plus from 1.19.5 to 1.19.6

Bumps [proto-plus](https://github.com/googleapis/proto-plus-python) from 1.19.5 to 1.19.6.
- [Release notes](https://github.com/googleapis/proto-plus-python/releases)
- [Changelog](https://github.com/googleapis/proto-plus-python/blob/master/CHANGELOG.md)
- [Commits](https://github.com/googleapis/proto-plus-python/compare/v1.19.5...v1.19.6)

---
updated-dependencies:
- dependency-name: proto-plus
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
Harmon758/Harmonbot,Harmon758/Harmonbot