Bump serve from 5.1.5 to 10.1.2 in /electron-example

Bumps [serve](https://github.com/zeit/serve) from 5.1.5 to 10.1.2.
- [Release notes](https://github.com/zeit/serve/releases)
- [Commits](vercel/serve@5.1.5...10.1.2)

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

Author: dependabot[bot]