chore(deps-dev): update @iobroker/legacy-testing requirement

Updates the requirements on [@iobroker/legacy-testing](https://github.com/ioBroker/legacy-testing) to permit the latest version.
- [Release notes](https://github.com/ioBroker/legacy-testing/releases)
- [Commits](ioBroker/legacy-testing@v1.0.3...v1.0.9)

---
updated-dependencies:
- dependency-name: "@iobroker/legacy-testing"
  dependency-type: direct:development
...

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

package.json

@@ -39,7 +39,7 @@
     "@alcalzone/release-script": "^3.7.0",
     "@alcalzone/release-script-plugin-iobroker": "^3.7.0",
     "@alcalzone/release-script-plugin-license": "^3.7.0",
-    "@iobroker/legacy-testing": "^1.0.3",
+    "@iobroker/legacy-testing": "^1.0.9",
     "axios": "^1.6.2",
     "chai": "^4.3.10",
     "eslint": "^8.55.0",