Update dependency postcss to v8.3.4

Author: renovate-bot

package.json

@@ -129,7 +129,7 @@
     "webpack": "5.38.1"
   },
   "resolutions": {
-    "ember-css-modules/postcss": "8.3.2",
+    "ember-css-modules/postcss": "8.3.4",
     "ember-inflector": "4.0.2"
   },
   "engines": {

yarn.lock

@@ -12273,10 +12273,10 @@ postcss-values-parser@^2.0.0, postcss-values-parser@^2.0.1:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-[email protected].2, "postcss@^7.0.35 || ^8.0.0", postcss@^8.2.15:
-  version "8.3.2"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.2.tgz#ed3ec489f5428af5740cd6effcc216b4d455ee64"
-  integrity sha512-y1FK/AWdZlBF5lusS5j5l4/vF67+vQZt1SXPVJ32y1kRGDQyrs1zk32hG1cInRTu14P0V+orPz+ifwW/7rR4bg==
+[email protected].4, "postcss@^7.0.35 || ^8.0.0", postcss@^8.2.15:
+  version "8.3.4"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.3.4.tgz#41ece1c43f2f7c74dc7d90144047ce052757b822"
+  integrity sha512-/tZY0PXExXXnNhKv3TOvZAOUYRyuqcCbBm2c17YMDK0PlVII3K7/LKdt3ScHL+hhouddjUWi+1sKDf9xXW+8YA==
   dependencies:
     colorette "^1.2.2"
     nanoid "^3.1.23"