Bump terser from 4.6.2 to 4.6.3
Bump terser from 4.6.2 to 4.6.3

Bumps [terser](https://github.com/terser/terser) from 4.6.2 to 4.6.3.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v4.6.2...v4.6.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
devotox/ember-cli-proxy-live-reload,devotox/ember-cli-proxy-live-reload