chore(deps-dev): bump gulp-modernizr from 3.3.0 to 3.4.0
chore(deps-dev): bump gulp-modernizr from 3.3.0 to 3.4.0

Bumps [gulp-modernizr](https://github.com/rejas/gulp-modernizr) from 3.3.0 to 3.4.0.
- [Release notes](https://github.com/rejas/gulp-modernizr/releases)
- [Commits](https://github.com/rejas/gulp-modernizr/compare/3.3.0...3.4.0)

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