chore(deps): update dependency autoprefixer to v10.4.21

Author: renovate[bot]

package.json

@@ -11,7 +11,7 @@
   "license": "MIT",
   "devDependencies": {
     "@types/sanitize-html": "2.6.2",
-    "autoprefixer": "10.4.8",
+    "autoprefixer": "10.4.21",
     "postcss": "8.4.16",
     "tailwindcss": "3.1.8",
     "typescript": "4.8.2",