Update dependency postcss to v8.5.12

Author: renovate[bot]

package.json

@@ -121,7 +121,7 @@
     "path-complete-extname": "1.0.0",
     "payment": "2.4.7",
     "porter-stemmer": "0.9.1",
-    "postcss": "8.5.10",
+    "postcss": "8.5.12",
     "postcss-import": "16.1.1",
     "prop-types": "15.8.1",
     "punycode": "2.3.1",

yarn.lock

@@ -20349,18 +20349,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.5.10":
-  version: 8.5.10
-  resolution: "postcss@npm:8.5.10"
-  dependencies:
-    nanoid: "npm:^3.3.11"
-    picocolors: "npm:^1.1.1"
-    source-map-js: "npm:^1.2.1"
-  checksum: 10c0/c592dffa0c4873b401f01955b265538d9942f425040df5e2b8f0ad34c83773a792ea0fa5859ccc99cfb5b955b4ebff118ab7056315388dc83b107b0fa8313576
-  languageName: node
-  linkType: hard
-
-"postcss@npm:^8.4.21, postcss@npm:^8.4.24, postcss@npm:^8.4.27, postcss@npm:^8.4.33, postcss@npm:^8.5.10, postcss@npm:^8.5.4, postcss@npm:^8.5.6":
+"postcss@npm:8.5.12, postcss@npm:^8.4.21, postcss@npm:^8.4.24, postcss@npm:^8.4.27, postcss@npm:^8.4.33, postcss@npm:^8.5.10, postcss@npm:^8.5.4, postcss@npm:^8.5.6":
   version: 8.5.12
   resolution: "postcss@npm:8.5.12"
   dependencies:
@@ -22059,7 +22048,7 @@ __metadata:
     path-complete-extname: "npm:1.0.0"
     payment: "npm:2.4.7"
     porter-stemmer: "npm:0.9.1"
-    postcss: "npm:8.5.10"
+    postcss: "npm:8.5.12"
     postcss-import: "npm:16.1.1"
     prettier: "npm:3.8.3"
     prop-types: "npm:15.8.1"