authelia: Fix argocd-cli OIDC client

The `argocd` CLI needs the audience claim in OIDC identity tokens to be
`argocd-cli` or it will refuse to use the token.

authelia/configuration.yml

@@ -96,6 +96,8 @@ identity_providers:
       description: argocd CLI
       public: true
       pre_configured_consent_duration: 7d
+      audience:
+      - argocd-cli
       redirect_uris:
       - http://localhost:8085/auth/callback
       scopes: