Description:

Taking inspiration from the Go garbage collector, this PR will seek to clean caches whenever they double from their last post-clean size, as well as on the regular clean schedule (currently 1 minute)

Fixes#5486, possibly#3842 and#3499

Checklist:

• Tests included.
• Lint and formatter run with no errors.
• Tests all pass.

Where applicable:

• Public APIs match existing style and have Since: line.
• Any breaking changes have a deprecation path or have been discussed.
• Check for binary size increases when importing new modules.