Bump mime from 1.6.0 to 2.4.6

Bumps [mime](https://github.com/broofa/mime) from 1.6.0 to 2.4.6.
- [Release notes](https://github.com/broofa/mime/releases)
- [Changelog](https://github.com/broofa/mime/blob/master/CHANGELOG.md)
- [Commits](https://github.com/broofa/mime/commits)

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

Author: dependabot[bot]

package-lock.json

@@ -37,7 +37,7 @@
   "dependencies": {
     "clone": "^2.1.0",
     "css": "^2.2.1",
-    "mime": "^1.6.0"
+    "mime": "^2.4.6"
   },
   "devDependencies": {
     "eslint": "^6.8.0",