fix(certificate) Add usages to ArgoCD server certificate

Signed-off-by: Elad Shmitanka <elad@myheritage.com>

charts/argo-cd/templates/argocd-server/certificate.yaml

@@ -30,4 +30,10 @@ spec:
   privateKey:
     {{- toYaml . | nindent 4 }}
   {{- end }}
+  {{- if .Values.server.certificate.usages }}
+  usages:
+    {{- range .Values.server.certificate.usages }}
+    - {{ . | quote }}
+    {{- end }}
+  {{- end }}
 {{- end }}

charts/argo-cd/values.yaml

@@ -1743,6 +1743,9 @@ server:
       algorithm: RSA
       # -- Key bit size of the private key. If algorithm is set to `Ed25519`, size is ignored.
       size: 2048
+    # -- Usages for the certificate
+    ### Ref: https://cert-manager.io/docs/reference/api-docs/#cert-manager.io/v1.KeyUsage
+    usages: []
 
   # TLS certificate configuration via Secret
   ## Ref: https://argo-cd.readthedocs.io/en/stable/operator-manual/tls/#tls-certificates-used-by-argocd-server