FIX(cert-manager): cert-manager

- to use haproxy ingress class
Changed from nginx to haproxy to match the current ingress controller.
This resolves the ArgoCD sync loop in cluster-infrastructure.

cert-manager/cluster-issuer-prod.yaml

@@ -17,8 +17,8 @@ spec:
       name: letsencrypt-prod
 
     # HTTP-01 challenge를 사용하여 도메인 소유권 검증
-    # Nginx Ingress를 통해 /.well-known/acme-challenge/ 경로로 검증
+    # HAProxy Ingress를 통해 /.well-known/acme-challenge/ 경로로 검증
     solvers:
     - http01:
         ingress:
-          class: nginx
+          class: haproxy

cert-manager/cluster-issuer-staging.yaml

@@ -19,4 +19,4 @@ spec:
     solvers:
     - http01:
         ingress:
-          class: nginx
+          class: haproxy