Update postcss-preset-env requirement from ^9.5.9 to ^9.5.11 in /e2e-package-managers/yarn in the all-dependencies group (csstools#1388)

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Author: dependabot[bot]

e2e-package-managers/yarn/package.json

@@ -5,7 +5,7 @@
 	"description": "Can you use yarn with our plugins?",
 	"devDependencies": {
 		"postcss": "^8.4.38",
-		"postcss-preset-env": "^9.5.9"
+		"postcss-preset-env": "^9.5.11"
 	},
 	"volta": {
 		"extends": "../../package.json",