Upgrade Element (1.7.7 -> 1.7.8)

roles/matrix-client-element/defaults/main.yml

@@ -2,7 +2,7 @@ matrix_client_element_enabled: true
 
 matrix_client_element_container_image_self_build: false
 
-matrix_client_element_docker_image: "vectorim/riot-web:v1.7.7"
+matrix_client_element_docker_image: "vectorim/riot-web:v1.7.8"
 matrix_client_element_docker_image_force_pull: "{{ matrix_client_element_docker_image.endswith(':latest') }}"
 
 matrix_client_element_data_path: "{{ matrix_base_data_path }}/client-element"