[FEATURE REQ] Include support for SftpRename (and possibly other) events in Blob Storage extension

[v-lhoffmann]

Library name

Microsoft.Azure.WebJobs.Extensions.Storage.Blobs

Please describe the feature.

Currently the extension uses the GetBlobTriggerMessage() method to retrieve message details from the "data" field, but this looks for properties that are not included in the SftpRename event schema. ("url", "eTag", and "blobType") Due to this, when receiving these events, a NullReferenceException will be thrown.

I would suggest there be some adjustments made to allow for SftpRename and possibly other events to be handled.

Event Schemas are found here:

https://learn.microsoft.com/en-us/azure/event-grid/event-schema-blob-storage?tabs=event-grid-event-schema#microsoftstorageblobrenamed-event-sftp-1

[github-actions]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @amnguye @jalauzon-msft @jaschrep-msft @nickliu-msft @seanmcc-msft.