Update matrixdotorg/dendrite-monolith Docker tag to v0.13.6

roles/custom/matrix-dendrite/defaults/main.yml

@@ -13,7 +13,7 @@ matrix_dendrite_docker_image_path: "matrixdotorg/dendrite-monolith"
 matrix_dendrite_docker_image: "{{ matrix_dendrite_docker_image_name_prefix }}{{ matrix_dendrite_docker_image_path }}:{{ matrix_dendrite_docker_image_tag }}"
 matrix_dendrite_docker_image_name_prefix: "{{ 'localhost/' if matrix_dendrite_container_image_self_build else matrix_container_global_registry_prefix }}"
 # renovate: datasource=docker depName=matrixdotorg/dendrite-monolith
-matrix_dendrite_docker_image_tag: "v0.13.5"
+matrix_dendrite_docker_image_tag: "v0.13.6"
 matrix_dendrite_docker_image_force_pull: "{{ matrix_dendrite_docker_image.endswith(':latest') }}"
 
 matrix_dendrite_base_path: "{{ matrix_base_data_path }}/dendrite"