chore(deps): update halfshot/matrix-hookshot docker tag to v7.3.0

roles/custom/matrix-bridge-hookshot/defaults/main.yml

@@ -29,7 +29,7 @@ matrix_hookshot_container_additional_networks_auto: []
 matrix_hookshot_container_additional_networks_custom: []
 
 # renovate: datasource=docker depName=halfshot/matrix-hookshot
-matrix_hookshot_version: 7.2.0
+matrix_hookshot_version: 7.3.0
 
 matrix_hookshot_docker_image: "{{ matrix_hookshot_docker_image_registry_prefix }}matrix-org/matrix-hookshot:{{ matrix_hookshot_version }}"
 matrix_hookshot_docker_image_registry_prefix: "{{ 'localhost/' if matrix_hookshot_container_image_self_build else matrix_hookshot_docker_image_registry_prefix_upstream }}"