Make MAS version configurable

defaults/main.yml

 ---
 matrix_authentication_service_pg_create_database: true
+matrix_authentication_service_version: latest
 matrix_authentication_service_arch: x86_64
 matrix_authentication_service_pg_max_connections: 10
 matrix_authentication_service_pg_min_connections: 0

tasks/main.yml

@@ -9,7 +9,7 @@
 
 - name: Download & unpack mas-cli
   ansible.builtin.unarchive:
-    src: "https://github.com/element-hq/matrix-authentication-service/releases/latest/download/mas-cli-{{ matrix_authentication_service_arch }}-linux.tar.gz"
+    src: "https://github.com/element-hq/matrix-authentication-service/releases/download/{{ matrix_authentication_service_version }}/mas-cli-{{ matrix_authentication_service_arch }}-linux.tar.gz"
     dest: /opt/matrix_authentication_service
     remote_src: true
 

templates/config.yaml

@@ -79,6 +79,11 @@ upstream_oauth2:
           action: require
           template: "{% raw %}{{ user.email }}{% endraw %}"
           set_email_verification: always
+        # An account name, for display purposes only
+        # This helps end user identify what account they are using
+        account_name:
+          action: require
+          template: "{% raw %}@{{ user.preferred_username }}{% endraw %}"
 
 email:
   from: '{{ matrix_authentication_service_email_from }}'