Fix Azure adapter `listFiles` ignoring `numFiles` parameter

[malydok]

Hey, thanks for the library!

We're just trying to integrate it within our org and have stumbled upon the issue that Azure listFiles does not use the numFiles argument so I went ahead and filled in the blanks.

Used this doc as reference: https://learn.microsoft.com/en-us/javascript/api/%40azure/storage-blob/containerclient?view=azure-node-latest#@azure-storage-blob-containerclient-listblobsflat (MS has some terrible docs btw, yikes).

The default page size for listing blobs seems to be 5000 assuming the SDK works the same as the REST API: https://learn.microsoft.com/en-us/rest/api/storageservices/list-blobs?tabs=microsoft-entra-id

Haven't tested this code yet.

By the way, is it intended that numFiles is implicitly is set to 10000 in AbstractAdapter? I think it would make sense to add this information to the listFiles docs.