Update dependency postcss to v8.5.20 (#19672)

package.json

@@ -109,7 +109,7 @@
     "parse-json": "8.3.0",
     "picocolors": "1.1.1",
     "please-upgrade-node": "3.2.0",
-    "postcss": "8.5.19",
+    "postcss": "8.5.20",
     "postcss-less": "6.0.0",
     "postcss-media-query-parser": "0.2.3",
     "postcss-scss": "4.0.9",

yarn.lock

@@ -7488,12 +7488,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nanoid@npm:^3.3.12":
-  version: 3.3.15
-  resolution: "nanoid@npm:3.3.15"
+"nanoid@npm:^3.3.16":
+  version: 3.3.16
+  resolution: "nanoid@npm:3.3.16"
   bin:
     nanoid: bin/nanoid.cjs
-  checksum: 10/13c74a5208d455286f7af46f42ac9f3d7b821b8a719aff8dbd5ad3fb80399c0c63cdd1e92d046ea576e403bec05262fbb7e116beb4cfcd5b5483550372bd94b1
+  checksum: 10/8004af92b5541af1dbd23b69845b5026f777d5b7ef07163cea1837aae86e052ced8b383cecbf8a4f1b5e77ae207df96dc45e16b9e0fa3c4b761d085f1e42851b
   languageName: node
   linkType: hard
 
@@ -8210,14 +8210,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.5.19":
-  version: 8.5.19
-  resolution: "postcss@npm:8.5.19"
+"postcss@npm:8.5.20":
+  version: 8.5.20
+  resolution: "postcss@npm:8.5.20"
   dependencies:
-    nanoid: "npm:^3.3.12"
+    nanoid: "npm:^3.3.16"
     picocolors: "npm:^1.1.1"
     source-map-js: "npm:^1.2.1"
-  checksum: 10/f51162887cd683afc02fa6c1f06b6485ebc18c62eec7dc2841c8fe0a0c4b53b9a834cc26aa1a233e87f0e3a10179db916a276464c0ee1d00354d1670ebc32953
+  checksum: 10/bcae7818094f88030cb410f17efc312f24ee8f9bbc46483ac6536df5a9270f693c5fc41dcf0ccc254ab3fa6853d48468ee8707999ad1cc434a6084ed0a0e7a47
   languageName: node
   linkType: hard
 
@@ -8363,7 +8363,7 @@ __metadata:
     parse-json: "npm:8.3.0"
     picocolors: "npm:1.1.1"
     please-upgrade-node: "npm:3.2.0"
-    postcss: "npm:8.5.19"
+    postcss: "npm:8.5.20"
     postcss-less: "npm:6.0.0"
     postcss-media-query-parser: "npm:0.2.3"
     postcss-scss: "npm:4.0.9"