Update dependency postcss to v8.3.6

Author: renovate-bot

package.json

@@ -59,7 +59,7 @@
 		"mini-css-extract-plugin": "2.1.0",
 		"node-sass": "6.0.1",
 		"node-sass-magic-importer": "5.3.2",
-		"postcss": "8.3.5",
+		"postcss": "8.3.6",
 		"postcss-cli": "8.3.1",
 		"postcss-easy-import": "3.0.0",
 		"postcss-flexbugs-fixes": "5.0.2",

yarn.lock

@@ -7802,10 +7802,10 @@ postcss@8.3.0:
     nanoid "^3.1.23"
     source-map-js "^0.6.2"
 
-postcss@8.3.5, postcss@^8.2.15, postcss@^8.3.0:
-  version "8.3.5"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.5.tgz#982216b113412bc20a86289e91eb994952a5b709"
-  integrity sha512-NxTuJocUhYGsMiMFHDUkmjSKT3EdH4/WbGF6GCi1NDGk+vbcUTun4fpbOqaPtD8IIsztA2ilZm2DhYCuyN58gA==
+postcss@8.3.6:
+  version "8.3.6"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.6.tgz#2730dd76a97969f37f53b9a6096197be311cc4ea"
+  integrity sha512-wG1cc/JhRgdqB6WHEuyLTedf3KIRuD0hG6ldkFEZNCjRxiC+3i6kkWUUbiJQayP28iwG35cEmAbe98585BYV0A==
   dependencies:
     colorette "^1.2.2"
     nanoid "^3.1.23"
@@ -7820,6 +7820,15 @@ postcss@^6.0.1, postcss@^6.0.11, postcss@^6.0.14:
     source-map "^0.6.1"
     supports-color "^5.4.0"
 
+postcss@^8.2.15, postcss@^8.3.0:
+  version "8.3.5"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.5.tgz#982216b113412bc20a86289e91eb994952a5b709"
+  integrity sha512-NxTuJocUhYGsMiMFHDUkmjSKT3EdH4/WbGF6GCi1NDGk+vbcUTun4fpbOqaPtD8IIsztA2ilZm2DhYCuyN58gA==
+  dependencies:
+    colorette "^1.2.2"
+    nanoid "^3.1.23"
+    source-map-js "^0.6.2"
+
 prebuild-install@^5.3.5:
   version "5.3.6"
   resolved "https://registry.yarnpkg.com/prebuild-install/-/prebuild-install-5.3.6.tgz#7c225568d864c71d89d07f8796042733a3f54291"