[OID4VCI] Generate pre-authorized codes using the JWT format

[IngridPuppet]

Description

Proxy of:

• [OID4VCI] Generate pre-authorized codes using the JWT format keycloak/keycloak#45231

[IngridPuppet]

Keycloak PR:

• [OID4VCI] Generate pre-authorized codes using the JWT format keycloak/keycloak#46450