Bump open from 6.4.0 to 7.0.0 (#103)

Bumps [open](https://github.com/sindresorhus/open) from 6.4.0 to 7.0.0.
- [Release notes](https://github.com/sindresorhus/open/releases)
- [Commits](sindresorhus/open@v6.4.0...v7.0.0)

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

package.json

@@ -34,7 +34,7 @@
     "connect": "^3.7.0",
     "mime": "^2.4.3",
     "morgan": "^1.9.1",
-    "open": "^6.3.0",
+    "open": "^7.0.0",
     "serve-static": "^1.14.1"
   },
   "devDependencies": {