Use mautrix-telegram Docker image from new official registry

roles/matrix-bridge-mautrix-telegram/defaults/main.yml

@@ -3,7 +3,8 @@
 
 matrix_mautrix_telegram_enabled: true
 
-matrix_mautrix_telegram_docker_image: "tulir/mautrix-telegram:v0.6.0"
+# See: https://mau.dev/tulir/mautrix-telegram/container_registry
+matrix_mautrix_telegram_docker_image: "dock.mau.dev/tulir/mautrix-telegram:v0.6.0"
 matrix_mautrix_telegram_docker_image_force_pull: "{{ matrix_mautrix_telegram_docker_image.endswith(':latest') }}"
 
 matrix_mautrix_telegram_base_path: "{{ matrix_base_data_path }}/mautrix-telegram"