fix(handlers): return 404 on v1 compliance check when metadata database is disabled

mentioned in commit 8817e161

mentioned in merge request gitlab-org/build/CNG!1181 (merged)

mentioned in merge request gitlab-com/gl-infra/k8s-workloads/gitlab-com!2247 (merged)

mentioned in merge request gitlab-com/gl-infra/k8s-workloads/gitlab-com!2248 (merged)

mentioned in merge request gitlab-org/charts/gitlab!2835 (merged)

mentioned in merge request omnibus-gitlab!6489 (merged)

mentioned in merge request omnibus-gitlab!6490 (merged)

mentioned in merge request gitlab-org/build/CNG!1185 (merged)

mentioned in merge request gitlab-org/build/CNG!1192 (merged)

mentioned in commit d7c80d66

mentioned in merge request gitlab-org/charts/gitlab!2845 (merged)

mentioned in merge request gitlab-development-kit!2964 (merged)