content.uuid.index option: prevent index lookup

[distantnative]

Changelog

Enhancement

• content.uuid.index option to prevent index lookup. Will throw an exception if a UUID model cannot be looked up from the cache alone. This requires you to keep a full UUID cache at all times but can be helpful for very large sites where any index lookup would run into memory limits.
  • Use content.uuid.format to specify uuid-v4 as format.

Ready?

• In-code documentation (wherever needed)
• Unit tests for fixed bug/feature
• Tests and CI checks all pass

For review team

• Add changes & docs to release notes draft in Notion

[bastianallgeier]

I had a second look at it and I would suggest to merge this. Since it's only activated by option, I don't see any risk here to get this into 4.4