Insert turn shared secret to server if turn URIs is not empty

group_vars/matrix_servers

@@ -2340,7 +2340,7 @@ matrix_synapse_turn_uris: |
     ] if matrix_coturn_enabled else []
   }}
 
-matrix_synapse_turn_shared_secret: "{{ matrix_coturn_turn_static_auth_secret if matrix_coturn_enabled else '' }}"
+matrix_synapse_turn_shared_secret: "{{ matrix_coturn_turn_static_auth_secret if (matrix_synapse_turn_uris | length > 0) else '' }}"
 
 matrix_synapse_self_check_validate_certificates: "{{ false if matrix_ssl_retrieval_method == 'self-signed' else true }}"
 
@@ -2611,7 +2611,7 @@ matrix_dendrite_turn_uris: |
     else []
   }}
 
-matrix_dendrite_turn_shared_secret: "{{ matrix_coturn_turn_static_auth_secret if matrix_coturn_enabled else '' }}"
+matrix_dendrite_turn_shared_secret: "{{ matrix_coturn_turn_static_auth_secret if (matrix_dendrite_turn_uris | length > 0) else '' }}"
 
 matrix_dendrite_disable_tls_validation: "{{ true if matrix_ssl_retrieval_method == 'self-signed' else false }}"