Bump uglify-js from 3.9.2 to 3.9.3 (#339)

Bumps [uglify-js](https://github.com/mishoo/UglifyJS) from 3.9.2 to 3.9.3.
- [Release notes](https://github.com/mishoo/UglifyJS/releases)
- [Commits](mishoo/UglifyJS@v3.9.2...v3.9.3)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

yarn.lock

@@ -7311,9 +7311,9 @@ typescript@3.9.2:
   integrity sha512-q2ktq4n/uLuNNShyayit+DTobV2ApPEo/6so68JaD5ojvc/6GClBipedB9zNWYxRSAlZXAe405Rlijzl6qDiSw==
 
 uglify-js@^3.6.0:
-  version "3.9.2"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.9.2.tgz#012b74fb6a2e440d9ba1f79110a479d3b1f2d48d"
-  integrity sha512-zGVwKslUAD/EeqOrD1nQaBmXIHl1Vw371we8cvS8I6mYK9rmgX5tv8AAeJdfsQ3Kk5mGax2SVV/AizxdNGhl7Q==
+  version "3.9.3"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.9.3.tgz#4a285d1658b8a2ebaef9e51366b3a0f7acd79ec2"
+  integrity sha512-r5ImcL6QyzQGVimQoov3aL2ZScywrOgBXGndbWrdehKoSvGe/RmiE5Jpw/v+GvxODt6l2tpBXwA7n+qZVlHBMA==
   dependencies:
     commander "~2.20.3"