chore(deps): Upgrade Yarn (RocketChat#34056)

.yarnrc.yml

@@ -12,4 +12,4 @@ plugins:
   - path: .yarn/plugins/@yarnpkg/plugin-engines.cjs
     spec: "https://raw.githubusercontent.com/devoto13/yarn-plugin-engines/main/bundles/%40yarnpkg/plugin-engines.js"
 
-yarnPath: .yarn/releases/yarn-4.5.0.cjs
+yarnPath: .yarn/releases/yarn-4.5.3.cjs

package.json

@@ -41,11 +41,11 @@
 	},
 	"homepage": "https://github.com/RocketChat/Rocket.Chat#readme",
 	"engines": {
-		"yarn": "4.5.0",
+		"yarn": "4.5.3",
 		"node": "20.18.0",
 		"npm": "Use yarn instead"
 	},
-	"packageManager": "[email protected].0",
+	"packageManager": "[email protected].3",
 	"houston": {
 		"minTag": "0.55.0-rc.0",
 		"updateFiles": [

packages/livechat/package.json

@@ -64,6 +64,7 @@
 		"lorem-ipsum": "^2.0.8",
 		"mini-css-extract-plugin": "~2.9.2",
 		"npm-run-all": "^4.1.5",
+		"postcss": "~8.4.49",
 		"postcss-css-variables": "^0.19.0",
 		"postcss-dir-pseudo-class": "^9.0.1",
 		"postcss-flexbugs-fixes": "^5.0.2",

yarn.lock

@@ -9016,6 +9016,7 @@ __metadata:
     mini-css-extract-plugin: "npm:~2.9.2"
     npm-run-all: "npm:^4.1.5"
     path-to-regexp: "npm:^6.3.0"
+    postcss: "npm:~8.4.49"
     postcss-css-variables: "npm:^0.19.0"
     postcss-dir-pseudo-class: "npm:^9.0.1"
     postcss-flexbugs-fixes: "npm:^5.0.2"