chore(deps): update dependency happy-dom to v20 [security]

Author: renovate[bot]

client/apps/landing-page/package.json

@@ -69,7 +69,7 @@
 	"devDependencies": {
 		"@hatchgrid/config": "workspace:*",
 		"@tailwindcss/typography": "^0.5.16",
-		"happy-dom": "^18.0.1",
+		"happy-dom": "^20.0.0",
 		"sharp": "^0.34.3",
 		"tailwind-merge": "^3.3.1",
 		"typescript": "^5.8.3",