Update dependency postcss to v8.5.20

Author: renovate[bot]

package.json

@@ -123,7 +123,7 @@
     "path-complete-extname": "1.0.0",
     "payment": "2.4.7",
     "porter-stemmer": "0.9.1",
-    "postcss": "8.5.19",
+    "postcss": "8.5.20",
     "postcss-import": "16.1.1",
     "prop-types": "15.8.1",
     "punycode": "2.3.1",

yarn.lock

@@ -16671,7 +16671,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nanoid@npm:^3.3.12, nanoid@npm:^3.3.16":
+"nanoid@npm:^3.3.16":
   version: 3.3.16
   resolution: "nanoid@npm:3.3.16"
   bin:
@@ -18887,18 +18887,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.5.19":
-  version: 8.5.19
-  resolution: "postcss@npm:8.5.19"
-  dependencies:
-    nanoid: "npm:^3.3.12"
-    picocolors: "npm:^1.1.1"
-    source-map-js: "npm:^1.2.1"
-  checksum: 10c0/302af9e4dfa8cce4f43af1798576b3a77ab7b23abac5522328c6c7a830d49b31281cba9d6071e478e6970a05ef82346d1570b8fbffae912f26a4f1a1a07f0a44
-  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:^8.5.17, postcss@npm:^8.5.4":
+"postcss@npm:8.5.20, postcss@npm:^8.4.21, postcss@npm:^8.4.24, postcss@npm:^8.4.27, postcss@npm:^8.4.33, postcss@npm:^8.5.17, postcss@npm:^8.5.4":
   version: 8.5.20
   resolution: "postcss@npm:8.5.20"
   dependencies:
@@ -20528,7 +20517,7 @@ __metadata:
     path-complete-extname: "npm:1.0.0"
     payment: "npm:2.4.7"
     porter-stemmer: "npm:0.9.1"
-    postcss: "npm:8.5.19"
+    postcss: "npm:8.5.20"
     postcss-import: "npm:16.1.1"
     prettier: "npm:3.9.5"
     prop-types: "npm:15.8.1"