Make `matrix_livekit_jwt_service_public_url` respect `matrix_livekit_jwt_service_path_prefix`

roles/custom/matrix-livekit-jwt-service/vars/main.yml

@@ -4,4 +4,4 @@
 
 ---
 
-matrix_livekit_jwt_service_public_url: "{{ matrix_livekit_jwt_service_scheme }}://{{ matrix_livekit_jwt_service_hostname }}"
+matrix_livekit_jwt_service_public_url: "{{ matrix_livekit_jwt_service_scheme }}://{{ matrix_livekit_jwt_service_hostname }}{{ matrix_livekit_jwt_service_path_prefix }}"