Give lizard enough free storage to host our freezable APT repository

Originally created by @intrigeri on #10851 (Redmine)

• #6295 (comment 107481) says we’ll need 620G in a year.
• We don’t have that much available disk space.
• Other stuff grows too, see tails#9400 (closed) has estimates. Better take this into account.

Attachments

• 10851-storage.ods

Parent Task: #6303 (closed)

Related issues

• Related to tails#9264 (closed)
• Related to #11680 (closed)
• Related to #11806 (closed)