Update @iobroker/legacy-testing requirement from ^1.0.3 to ^1.0.9

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] <support@github.com>

package.json

@@ -26,7 +26,7 @@
     "@alcalzone/release-script-plugin-iobroker": "^3.7.0",
     "@alcalzone/release-script-plugin-license": "^3.7.0",
     "@iobroker/adapter-dev": "^1.2.0",
-    "@iobroker/legacy-testing": "^1.0.3",
+    "@iobroker/legacy-testing": "^1.0.9",
     "eslint": "^8.55.0"
   },
   "bugs": {