G4 migration: Huisartsinzage (Zorginzage Huisarts-VVT) #4599

Parent: #4355. Definitions: https://github.com/nuts-foundation/toepassing-zorginzage-ha-vvt/tree/main/definitions.

Current state

No G4 fingerprint in any environment; productie pins G1 only, test/ontwikkel pin the G1 test CA, acceptatie pins G1 test + G1 prod. Draft PR with the pattern changes for all environments plus a definitions README: nuts-foundation/toepassing-zorginzage-ha-vvt#52.

Checklist

• Use-case owner informed
• toepassing-zorginzage-ha-vvt#52 reviewed and merged (productie: G1 + G4 prod; acceptatie: G1 test + G1 prod + G4 test + G4 prod; test/ontwikkel: G1 test + G4 test)
• Check that all participants have upgraded