Bump open from 0.0.5 to 7.0.0 (#721)

Bumps [open](https://github.com/sindresorhus/open) from 0.0.5 to 7.0.0.
- [Release notes](https://github.com/sindresorhus/open/releases)
- [Commits](https://github.com/sindresorhus/open/commits/v7.0.0)

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

package.json

@@ -44,7 +44,7 @@
 		"grunt-contrib-uglify": "^3.3.0",
 		"mocha": "^5.2.0",
 		"mocha-headless-chrome": "^2.0.1",
-		"open": "0.0.5",
+		"open": "7.0.0",
 		"serve-static": "^1.7.1"
 	},
 	"scripts": {