feat(artifactapi): add kanidm to ghcr docker immutable patterns

Prerequisite for kanidm deployment (PR benvin/kanidm).

apps/base/artifactapi/resources/conf.d/remote-docker.yaml

@@ -6,6 +6,7 @@ remotes:
     immutable_patterns:
       - "^cloudnative-pg/cloudnative-pg"
       - "^emberstack/helm-charts"
+      - "^kanidm/"
       - "^openvoxproject/"
       - "^stakater/reloader"
       - "^voxpupuli/puppetboard"