[master < T0957] Fix storage GC to handle IN_MEMORY_ANALYTICAL

[Ignition]

This fix corrects the garbage collection of our in memory store to handle deletions made while in IN_MEMORY_ANALYTICAL mode. They will now be collected rather than leak.

[master < Task] PR

• Check, and update documentation if necessary
• Provide the full content or a guide for the final git message

To keep docs changelog up to date, one more thing to do:

• Write a release note here -> "Deletions made in IN_MEMORY_ANALYTICAL now handled correctly"
• Tag someone from docs team in the comments

Closes #957

[gvolfing]

I have one concern about the e2e tests, other than that I think this is good to go. Great job!

[antoniofilipovic]

The code seems fine, I am a little bit worried about the full scan for doing detach delete.