Fix some ansible-lint-reported warnings

This mostly fixes `key-order` warnings around
`block` statements.

roles/matrix-registration/tasks/init.yml

@@ -10,7 +10,10 @@
     matrix_systemd_services_list: "{{ matrix_systemd_services_list + ['matrix-registration.service'] }}"
   when: matrix_registration_enabled | bool
 
-- block:
+- when: matrix_registration_enabled | bool
+  tags:
+    - always
+  block:
     - name: Fail if matrix-nginx-proxy role already executed
       ansible.builtin.fail:
         msg: >-
@@ -54,9 +57,6 @@
             +
             [matrix_registration_matrix_nginx_proxy_configuration]
           }}
-  tags:
-    - always
-  when: matrix_registration_enabled | bool
 
 - name: Warn about reverse-proxying if matrix-nginx-proxy not used
   ansible.builtin.debug:

roles/matrix-registration/tasks/setup_install.yml

@@ -3,13 +3,15 @@
 - ansible.builtin.set_fact:
     matrix_registration_requires_restart: false
 
-- block:
+- when: "matrix_registration_database_engine == 'postgres'"
+  block:
     - name: Check if an SQLite database already exists
       ansible.builtin.stat:
         path: "{{ matrix_registration_sqlite_database_path_local }}"
       register: matrix_registration_sqlite_database_path_local_stat_result
 
-    - block:
+    - when: "matrix_registration_sqlite_database_path_local_stat_result.stat.exists | bool"
+      block:
         - ansible.builtin.set_fact:
             matrix_postgres_db_migration_request:
               src: "{{ matrix_registration_sqlite_database_path_local }}"
@@ -30,8 +32,6 @@
 
         - ansible.builtin.set_fact:
             matrix_registration_requires_restart: true
-      when: "matrix_registration_sqlite_database_path_local_stat_result.stat.exists | bool"
-  when: "matrix_registration_database_engine == 'postgres'"
 
 - name: Ensure matrix-registration paths exist
   ansible.builtin.file: