Bump node-notifier in /examples/sites/devcon-issuer/react

Bumps [node-notifier](https://github.com/mikaelbr/node-notifier) from 8.0.0 to 8.0.1.
- [Release notes](https://github.com/mikaelbr/node-notifier/releases)
- [Changelog](https://github.com/mikaelbr/node-notifier/blob/v8.0.1/CHANGELOG.md)
- [Commits](mikaelbr/node-notifier@v8.0.0...v8.0.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]