CHORE(resources): set memory limits equal to memory requests

- Align memory limits with memory requests for guaranteed QoS class
- argocd: controller, server, repoServer, redis
- traefik: main container
- cert-manager: main, webhook, cainjector
- argocd-image-updater: main container

traefik/helm-values.yaml

@@ -15,7 +15,7 @@ spec:
         cpu: 50m
         memory: 128Mi
       limits:
-        memory: 192Mi
+        memory: 128Mi
 
     # Pod Anti-Affinity - 가능하면 각 노드에 분산 배치 (soft)
     affinity: