build(deps-dev): bump @iobroker/testing from 2.6.0 to 4.1.0

Bumps [@iobroker/testing](https://github.com/AlCalzone/testing) from 2.6.0 to 4.1.0.
- [Release notes](https://github.com/AlCalzone/testing/releases)
- [Changelog](https://github.com/ioBroker/testing/blob/master/CHANGELOG.md)
- [Commits](ioBroker/testing@v2.6.0...v4.1.0)

---
updated-dependencies:
- dependency-name: "@iobroker/testing"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -37,7 +37,7 @@
     "@alcalzone/release-script-plugin-license": "~3.5.9",
     "@alcalzone/release-script-plugin-manual-review": "~3.5.9",
     "@iobroker/adapter-dev": "^1.0.1",
-    "@iobroker/testing": "^2.6.0",
+    "@iobroker/testing": "^4.1.0",
     "@types/chai": "^4.3.3",
     "@types/chai-as-promised": "^7.1.5",
     "@types/jquery": "^3.5.14",