G4 migration: Proactieve Zorgplanning (ACP/PZP)

Parent: #4355. Definitions: https://github.com/nuts-foundation/application-on-nuts-acp-pzp. Not in the original list of use cases, but it pins the same UZI CA.

Current state

test/acceptatie/ontwikkel accept the G4 test CA since application-on-nuts-acp-pzp#3. Productie (discovery definition and access policy) pins G1 only.

Use-case owner informed
Production and acceptatie definitions accept the G4 production CA (sDTL__yv54TtrvSf7601TtvHgj2NZSLT2m-Okf8oqkI) next to G1 (PR: Accept G4 UZI server CA in the production and acceptatie definitions application-on-nuts-acp-pzp#4)
Definitions README with fingerprints and rollout order added
Check that all participants have upgraded