[Security] Bump uglifier from 2.5.1 to 2.7.2
[Security] Bump uglifier from 2.5.1 to 2.7.2

Bumps [uglifier](https://github.com/lautis/uglifier) from 2.5.1 to 2.7.2. **This update includes security fixes.**
- [Release notes](https://github.com/lautis/uglifier/releases)
- [Changelog](https://github.com/lautis/uglifier/blob/master/CHANGELOG.md)
- [Commits](https://github.com/lautis/uglifier/compare/v2.5.1...v2.7.2)

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