Bumps [preact](https://github.com/developit/preact) from 10.0.0-beta.2 to 10.0.0-beta.3.
- [Release notes](https://github.com/developit/preact/releases)
- [Commits](https://github.com/developit/preact/compare/10.0.0-beta.2...10.0.0-beta.3)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>