fix: upgrade @iobroker/testing from 2.4.2 to 2.4.4

Snyk has created this PR to upgrade @iobroker/testing from 2.4.2 to 2.4.4.

See this package in npm:
https://www.npmjs.com/package/@iobroker/testing

See this project in Snyk:
https://app.snyk.io/org/grizzelbee/project/e2ceac3e-61b9-438d-b7e9-61a70b0a4e23?utm_source=github&utm_medium=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -34,7 +34,7 @@
     "ssl-root-cas": "^1.3.1"
   },
   "devDependencies": {
-    "@iobroker/testing": "^2.4.2",
+    "@iobroker/testing": "^2.4.4",
     "@types/chai": "^4.2.15",
     "@types/chai-as-promised": "^7.1.2",
     "@types/gulp": "^4.0.8",