Bump eventemitter2 from 6.0.0 to 6.3.1
Bump eventemitter2 from 6.0.0 to 6.3.1

Bumps [eventemitter2](https://github.com/hij1nx/EventEmitter2) from 6.0.0 to 6.3.1.
- [Release notes](https://github.com/hij1nx/EventEmitter2/releases)
- [Changelog](https://github.com/EventEmitter2/EventEmitter2/blob/master/CHANGELOG.md)
- [Commits](https://github.com/hij1nx/EventEmitter2/commits)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
ripple/ripple-lib,ripple/ripple-lib,ripple/ripple-lib,ripple/ripple-lib