fix: upgrade @umbraco-cms/backoffice from 16.1.0 to 16.1.1

Snyk has created this PR to upgrade @umbraco-cms/backoffice from 16.1.0 to 16.1.1.

See this package in npm:
@umbraco-cms/backoffice

See this project in Snyk:
https://app.snyk.io/org/jcdcdev/project/083c236a-afdb-48a5-b657-e2a2e0665a2c?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

src/Umbraco.Community.SimpleTrees.Client/package-lock.json

@@ -12,7 +12,7 @@
 	"devDependencies": {
 		"lit": "^3.3.1",
 		"@hey-api/openapi-ts": "^0.80.1",
-		"@umbraco-cms/backoffice": "^16.1.0",
+		"@umbraco-cms/backoffice": "^16.1.1",
 		"typescript": "^5.8.3",
 		"vite": "^7.0.6"
 	},