agent-platform release v4.7.8

Fixed

• (connectivity) A kagent.modelConfigs[] provider outside the ModelConfig CRD’s enum fails the render naming the enum; an OpenAI entry with a baseUrl pins the openAI block key, and verify-kagent-crds sweeps every provider of the CRD’s enum in #389 by @teemow

Full Changelog: https://github.com/giantswarm/agent-platform/compare/v4.7.7...v4.7.8