Scope Kingfisher scan to eblume user only on ringtail

Mirror repos cause scan failures (likely ephemeral storage or timeout).
Scan only eblume/ repos until we investigate the root cause.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

argocd/manifests/kingfisher/cronjob.yaml

@@ -30,7 +30,6 @@ spec:
                     --api-url https://forge.ops.eblu.me/api/v1/ \
                     --clone-url-base https://forge.ops.eblu.me/ \
                     --user eblume \
-                    --all-organizations \
                     --repo-type all \
                     --no-update-check \
                     --tls-mode lax \