fix(deps): update dependency postcss to v8.4.39 (#30877)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

yarn.lock

@@ -13951,13 +13951,13 @@ __metadata:
   linkType: hard
 
 "postcss@npm:^8.2.15, postcss@npm:^8.4.24, postcss@npm:^8.4.38":
-  version: 8.4.38
-  resolution: "postcss@npm:8.4.38"
+  version: 8.4.39
+  resolution: "postcss@npm:8.4.39"
   dependencies:
     nanoid: "npm:^3.3.7"
-    picocolors: "npm:^1.0.0"
+    picocolors: "npm:^1.0.1"
     source-map-js: "npm:^1.2.0"
-  checksum: 10c0/955407b8f70cf0c14acf35dab3615899a2a60a26718a63c848cf3c29f2467b0533991b985a2b994430d890bd7ec2b1963e36352b0774a19143b5f591540f7c06
+  checksum: 10c0/16f5ac3c4e32ee76d1582b3c0dcf1a1fdb91334a45ad755eeb881ccc50318fb8d64047de4f1601ac96e30061df203f0f2e2edbdc0bfc49b9c57bc9fb9bedaea3
   languageName: node
   linkType: hard