npm(deps): bump @azure/arm-subscriptions from 5.1.1 to 6.0.0

Bumps [@azure/arm-subscriptions](https://github.com/Azure/azure-sdk-for-js) from 5.1.1 to 6.0.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-js/releases)
- [Changelog](https://github.com/Azure/azure-sdk-for-js/blob/main/documentation/Changelog-for-next-generation.md)
- [Commits](https://github.com/Azure/azure-sdk-for-js/compare/@azure/eventgrid_5.1.1...@azure/arm-subscriptions_6.0.0)

---
updated-dependencies:
- dependency-name: "@azure/arm-subscriptions"
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -256,7 +256,7 @@
   "dependencies": {
     "@azure/arm-resources": "^7.0.0",
     "@azure/arm-storage": "^19.1.0",
-    "@azure/arm-subscriptions": "^5.1.1",
+    "@azure/arm-subscriptions": "^6.0.0",
     "@azure/data-tables": "^13.3.2",
     "@azure/identity": "^4.13.0",
     "@azure/storage-blob": "^12.30.0",