sync roles with changes from OWS

roles/mariadb/tasks/mariadb.yml

@@ -1,4 +1,14 @@
 ---
+- name: Set architecture alias
+  set_fact:
+    architecture_alias: "amd64"  # noqa: var-naming[no-role-prefix]
+  when: ansible_architecture == "x86_64"
+
+- name: Set architecture alias
+  set_fact:
+    architecture_alias: "arm64"  # noqa: var-naming[no-role-prefix]
+  when: ansible_architecture == "aarch64"
+
 - name: Add MariaDB GPG apt key
   apt_key:
     url: https://mariadb.org/mariadb_release_signing_key.asc
@@ -7,7 +17,7 @@
 
 - name: Add MariaDB Repository
   apt_repository:
-    repo: "deb [arch={{ deb_architecture }} signed-by=/usr/share/keyrings/mariadb_release_signing_key.gpg] \
+    repo: "deb [arch={{ architecture_alias }} signed-by=/usr/share/keyrings/mariadb_release_signing_key.gpg] \
           https://mirrors.n-ix.net/mariadb/repo/{{ mariadb_server_version }}/ubuntu {{ ansible_distribution_release }} main/debug"
     state: present
     update_cache: true