use openssl instead of deprecated crypt module

tasks/main.yml

@@ -32,7 +32,7 @@
         salt: "{{ ((username + inventory_hostname) | hash('sha512'))[:16] }}"
 
     - name: Encrypt password for user {{ username }}
-      shell: python3 -c 'import crypt; print(crypt.crypt("{{ password }}", "$6${{ salt }}"))'
+      ansible.builtin.command: openssl passwd -6 -salt "{{ salt }}" "{{ password }}"
       register: username_shadowpw
       changed_when: false