Bump github.com/Azure/azure-sdk-for-go/sdk/azidentity from 1.7.0 to 1.8.0 in /notifier/azservicebus in the azure-sdk-for-go group

Bump github.com/Azure/azure-sdk-for-go/sdk/azidentity from 1.7.0 to 1.8.0 in /notifier/azservicebus in the azure-sdk-for-go group #1098