fix: upgrade autoprefixer from 10.4.5 to 10.4.6

Snyk has created this PR to upgrade autoprefixer from 10.4.5 to 10.4.6.

See this package in npm:
https://www.npmjs.com/package/autoprefixer

See this project in Snyk:
https://app.snyk.io/org/ytetsuro/project/5c9d5982-3265-4dba-90fc-6fc790ca8257?utm_source=github&utm_medium=referral&page=upgrade-pr

package.json

@@ -10,7 +10,7 @@
   "dependencies": {
     "@types/codemirror": "0.0.109",
     "@types/jest": "^27.4.1",
-    "autoprefixer": "^10.4.5",
+    "autoprefixer": "^10.4.6",
     "bulma": "^0.9.3",
     "codemirror": "^5.65.3",
     "commander": "^7.2.0",