Merge pull request #279 from spinframework/dependabot/npm_and_yarn/autoprefixer-10.4.21

Bump autoprefixer from 10.4.20 to 10.4.21

Author: bacongobbler

package-lock.json

@@ -37,7 +37,7 @@
     "check:crd:reference": "./crd-reference/check.sh"
   },
   "devDependencies": {
-    "autoprefixer": "^10.4.20",
+    "autoprefixer": "^10.4.21",
     "cross-env": "^7.0.3",
     "hugo-extended": "0.134.2",
     "postcss-cli": "^11.0.1"