Add Let's Encrypt production issuer and ArgoCD ingress for argocd.infinicaretech.com

- Add letsencrypt-prod ClusterIssuer with HTTP-01 solver
- Add ArgoCD ingress with TLS, HTTPS backend protocol, ssl-redirect
- Replace nip.io hosts with argocd.infinicaretech.com

infrastructure/cert-manager/cluster-issuer.yaml

@@ -29,3 +29,18 @@ metadata:
 spec:
   ca:
     secretName: infinicaretech-ca-secret
+---
+apiVersion: cert-manager.io/v1
+kind: ClusterIssuer
+metadata:
+  name: letsencrypt-prod
+spec:
+  acme:
+    server: https://acme-v02.api.letsencrypt.org/directory
+    email: info@infinicaretech.com
+    privateKeySecretRef:
+      name: letsencrypt-prod-key
+    solvers:
+      - http01:
+          ingress:
+            class: nginx