Bump uglify-js from 1.2.6 to 3.7.2 in /src/bootstrap
Bump uglify-js from 1.2.6 to 3.7.2 in /src/bootstrap

Bumps [uglify-js](https://github.com/mishoo/UglifyJS2) from 1.2.6 to 3.7.2.
- [Release notes](https://github.com/mishoo/UglifyJS2/releases)
- [Commits](https://github.com/mishoo/UglifyJS2/commits/v3.7.2)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
tosdr/tosdr.org,tosdr/tosdr.org,tosdr/tosdr.org,tosdr/tosdr.org,tosdr/tosdr.org