Upgrade mxisd (1.2.0 -> 1.2.1)

roles/matrix-server/defaults/main.yml

@@ -225,7 +225,7 @@ matrix_mailer_relay_auth_password: ""
 # If you wish to use the public identity servers (matrix.org, vector.im, riot.im) instead of your own,
 # you may wish to disable this.
 matrix_mxisd_enabled: true
-matrix_mxisd_docker_image: "kamax/mxisd:1.2.0"
+matrix_mxisd_docker_image: "kamax/mxisd:1.2.1"
 matrix_mxisd_base_path: "{{ matrix_base_data_path }}/mxisd"
 matrix_mxisd_config_path: "{{ matrix_mxisd_base_path }}/config"
 matrix_mxisd_data_path: "{{ matrix_mxisd_base_path }}/data"