komga: fix controller-side health probe path too (/actuator/health)

The .felhom.yml controller probe also pointed at the auth-gated /api/v1/actuator/health
(401) — that is what drives the dashboard 'Nem egészséges' state. Repoint to the
unauthenticated /actuator/health, matching the docker HC fix.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

templates/komga/.felhom.yml

@@ -68,6 +68,7 @@ healthcheck:
   checks:
     - type: api
       port: 25600
-      path: "/api/v1/actuator/health"
+      # /actuator/health is unauthenticated (200); the /api/v1 prefix is auth-gated (401).
+      path: "/actuator/health"
       expect:
         status: 200