Epic: Azure blob storage storage medium term tasks

[arpad-m]

This is a follow-up issue of #5567 which was about production-ready Azure blob storage support. The Azure blob storage is working well now, so this issue serves for the more medium to long term, lower priority tasks needed for maintenance and support.

Tasks

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1. Epic: Support Azure Blob storage in the scrubber #7547
   c/storage c/storage/scrubber t/Epic +3
   
2. Implement time_travel_recover for Azure blob storage #7546
   a/tech_debt c/storage +2
   
3. https://github.com/neondatabase/cloud/issues/12627
4. Azure: proper bulk deletion #7931
   c/storage +1