Bump em-eventsource from 0.3.0 to 0.3.1
Bump em-eventsource from 0.3.0 to 0.3.1

Bumps [em-eventsource](https://github.com/francois2metz/em-eventsource) from 0.3.0 to 0.3.1.
- [Release notes](https://github.com/francois2metz/em-eventsource/releases)
- [Changelog](https://github.com/francois2metz/em-eventsource/blob/master/CHANGELOG.md)
- [Commits](https://github.com/francois2metz/em-eventsource/compare/v0.3.0...v0.3.1)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
24pullrequests/dasher