style 💎: Update kerberos copy task to use remote source

Changed the `copy` task in kerberos.yml to use a remote source for the krb5 configuration file, allowing for easier management of the file on remote hosts.

tasks/kerberos.yml

@@ -42,6 +42,7 @@
   ansible.builtin.copy:
     src: '{{ krb5_conf_path }}'
     dest: /etc/krb5.conf
+    remote_src: true
     owner: root
     group: root
     mode: '0644'