Update ajbura/cinny Docker tag to v4.8.1

Author: renovate[bot]

roles/custom/matrix-client-cinny/defaults/main.yml

@@ -17,7 +17,7 @@ matrix_client_cinny_container_image_self_build: false
 matrix_client_cinny_container_image_self_build_repo: "https://github.com/ajbura/cinny.git"
 
 # renovate: datasource=docker depName=ajbura/cinny
-matrix_client_cinny_version: v4.8.0
+matrix_client_cinny_version: v4.8.1
 matrix_client_cinny_docker_image: "{{ matrix_client_cinny_docker_image_registry_prefix }}ajbura/cinny:{{ matrix_client_cinny_version }}"
 matrix_client_cinny_docker_image_registry_prefix: "{{ 'localhost/' if matrix_client_cinny_container_image_self_build else matrix_client_cinny_docker_image_registry_prefix_upstream }}"
 matrix_client_cinny_docker_image_registry_prefix_upstream: "{{ matrix_client_cinny_docker_image_registry_prefix_upstream_default }}"