Fix the client_id variable name.

tasks/main.yml

@@ -6,7 +6,7 @@
     auth_realm: "{{ kcc_auth_realm }}"
     auth_username: "{{ kcc_auth_username }}"
     auth_password: "{{ kcc_auth_password }}"
-    client_id: "{{client_id}}"
+    client_id: "{{ shinyproxy_oidc_client_id }}"
   register: shinyproxy_keycloak_secret
   when: kcc_clientid is defined
 - name: Shinyproxy as a standalone service