Describe anonymization beyond test data

https://pedia.altinn.cloud/sec/security-architecture/data-security/anonymization/ (or a page referred to from this page) should be updated with info on anonymization done beyond test data (e.g. in logging, ticket creation etc). Once approved, this should be migrated from pedia to docs.

Start with the anonymization page at the linked Pedia URL and review any page it refers to. Extend the documentation to cover anonymization beyond test data, including logging and ticket creation, then migrate the approved content from Pedia to the docs.

Written by the indexing model from the issue text.