[Support] Setup persistent S3 bucket for openscapes

[yuvipanda]

The Freshdesk ticket link

https://2i2c.freshdesk.com/a/tickets/1278

Ticket request type

Feature Request

Ticket impact

🟨 Medium

Short ticket description

This also came out of #3614

Setup a persistent S3 bucket for use by users on this hub.

(Optional) Investigation results

#3273 is related, and may need to be resolved first.

[yuvipanda]

This needs #3273 first.

Once that is done, it can simply follow https://infrastructure.2i2c.org/howto/features/buckets/

[yuvipanda]

We don't actually need #3273 here I think - we can just follow the current instructions as they are.

[sgibson91]

PR #3832 is ready for review and has been deployed to the staging hub for testing