replace ssmtp by msmtp + upgrade lemonldap to 2.19.0

build/rockylinux9/lemonldap-ng/ansible/install.yaml

 ---
 - hosts: localhost
   vars:
-    lemonldap2_version: 2.18.2
+    lemonldap2_version: 2.19.0
 
   tasks:
   - name: Install locales for glibc
@@ -39,7 +39,7 @@
       - perl-DBD-Pg
       - lasso-perl
       - perl-Glib
-      - ssmtp
+      - msmtp
      state: present
 
   - name: Fix /var/lib/lemonldap-ng/conf access