fix template misspell

tasks/main.yml

   command: ./scripts/composer_wrapper.php install --no-dev
   args:
     chdir: "{{librenms_home}}"
+    creates: "{{librenms_home}}/composer.phar"
   become: yes
   become_user: "{{librenms_user}}"
 

templates/librenms.conf.j2

 
 {% if librenms_tls %}
   SSLEngine on
-  SSLCertificateFile "{{nextcloud_cert_file}}"
-  SSLCertificateKeyFile "{{nextcloud_key_file}}"
+  SSLCertificateFile "{{librenms_cert_file}}"
+  SSLCertificateKeyFile "{{librenms_key_file}}"
 {% endif %}
 
   AllowEncodedSlashes NoDecode