Upgrade Dendrite (0.12.0 -> 0.13.0)

Untested.

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

@@ -10,7 +10,7 @@ matrix_dendrite_container_image_self_build_repo: "https://github.com/matrix-org/
 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 }}"
-matrix_dendrite_docker_image_tag: "v0.12.0"
+matrix_dendrite_docker_image_tag: "v0.13.0"
 matrix_dendrite_docker_image_force_pull: "{{ matrix_dendrite_docker_image.endswith(':latest') }}"
 
 matrix_dendrite_base_path: "{{ matrix_base_data_path }}/dendrite"