[EG] Resource Notifications required/optional

[l0lawrence]

[openapi-pipeline-app[bot]]

Next Steps to Merge

Next steps that must be taken to merge this PR:

• ❌ The required check named SDK azure-sdk-for-go has failed. Refer to the check in the PR's 'Checks' tab for details on how to fix it and consult the aka.ms/ci-fix guide. In addition, refer to step 3 in the PR workflow diagram

[openapi-pipeline-app[bot]]

Generated ApiView

Language	Package Name	ApiView Link
.Net	Azure.Messaging.EventGrid.SystemEvents	https://apiview.dev/Assemblies/Review/3e102a891e5445af8be8cde833dbb702?revisionId=e16a1033781f4fc5a5a496ef241d4c97
TypeSpec	Azure.Messaging.EventGrid.SystemEvents	https://apiview.dev/Assemblies/Review/bf48b2982ff74cd796f5900a221af2d5?revisionId=9072c1ad1e084983b04e4ebc009db633

[azure-sdk]

API change check

APIView has identified API level changes in this PR and created following API reviews.

Microsoft.ApiCenter