Fail if trying to use Jitsi on an architecture other than amd64

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1797

roles/matrix-jitsi/tasks/init.yml

@@ -3,3 +3,8 @@
 - set_fact:
     matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-jitsi-web.service', 'matrix-jitsi-prosody.service', 'matrix-jitsi-jicofo.service', 'matrix-jitsi-jvb.service'] }}"
   when: matrix_jitsi_enabled|bool
+
+- name: Fail if on an unsupported architecture
+  fail:
+    msg: "Jitsi only supports the amd64 architecture right now. See https://github.com/jitsi/docker-jitsi-meet/issues/1069 and https://github.com/jitsi/docker-jitsi-meet/issues/1214"
+  when: matrix_jitsi_enabled|bool and matrix_architecture != 'amd64'