Update dependency postcss to v8.4.12

Author: renovate-bot

package.json

@@ -25,7 +25,7 @@
 	"devDependencies": {
 		"autoprefixer": "10.4.4",
 		"browserslist": "4.20.2",
-		"postcss": "8.4.11",
+		"postcss": "8.4.12",
 		"postcss-calc": "8.2.4",
 		"postcss-cli": "9.1.0",
 		"postcss-color-mod-function": "3.0.3",

yarn.lock

@@ -794,10 +794,10 @@ postcss-values-parser@^2.0.0:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss@8.4.11:
-  version "8.4.11"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.11.tgz#a06229f23820b4ddd46500a3e38dbca1598a8e8d"
-  integrity sha512-D+jFLnT0ilGfy4CVBGbC+XE68HkVpT8+CUkDrcSpgxmo4RKco2uaZ4kIoyVGEm+m8KN/+Vwgs8MtpNbQ3/ma9w==
+postcss@8.4.12:
+  version "8.4.12"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.12.tgz#1e7de78733b28970fa4743f7da6f3763648b1905"
+  integrity sha512-lg6eITwYe9v6Hr5CncVbK70SoioNQIq81nsaG86ev5hAidQvmOeETBqs7jm43K2F5/Ley3ytDtriImV6TpNiSg==
   dependencies:
     nanoid "^3.3.1"
     picocolors "^1.0.0"