Update grunt-contrib-uglify requirement from ~3.3.0 to ~4.0.1
Update grunt-contrib-uglify requirement from ~3.3.0 to ~4.0.1

Updates the requirements on [grunt-contrib-uglify](https://github.com/gruntjs/grunt-contrib-uglify) to permit the latest version.
- [Release notes](https://github.com/gruntjs/grunt-contrib-uglify/releases)
- [Changelog](https://github.com/gruntjs/grunt-contrib-uglify/blob/master/CHANGELOG)
- [Commits](https://github.com/gruntjs/grunt-contrib-uglify/compare/v3.3.0...v4.0.1)

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