Bump @iobroker/testing from 1.4.0 to 4.1.0

Bumps [@iobroker/testing](https://github.com/AlCalzone/testing) from 1.4.0 to 4.1.0.
- [Changelog](https://github.com/ioBroker/testing/blob/master/CHANGELOG.md)
- [Commits](https://github.com/AlCalzone/testing/commits/v4.1.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -34,7 +34,7 @@
         "mocha": "^4.1.0",
         "chai": "^4.3.10",
         "eslint": "^5.9.0",
-        "@iobroker/testing": "^1.0.4"
+        "@iobroker/testing": "^4.1.0"
     },
     "bugs": {
         "url": "https://github.com/iobroker-community-adapters/issues"