Stop using the deep flag for Rucio list_dataset_replicas API

[amaltaro]

Impact of the new feature
WMAgent (and perhaps a few microservices)

Is your feature request related to a problem? Please describe.
As mentioned in the GH linked in this comment:
rucio/rucio#5024 (comment)

Rucio developers are planning to deprecate the --deep flag in the list_dataset_replicas API.
Even though this is likely going to be implemented ensuring backwards compatibility, I think it would be beneficial if we simply stop using it in WMCore code.

Describe the solution you'd like
Remove the use of --deep flag in the list_dataset_replicas API and update rucio-clients to the relevant version that no longer supports it.

Note though that it has to be implemented only when this flag is no longer supported in Rucio.

Describe alternatives you've considered
None

Additional context
None