fix: ten => fifteen in the page description

Author: aoleynikov

templates/data/kafka/support.html

@@ -7,7 +7,7 @@
 {% block title %}Get support for Apache Kafka, an open source event streaming platform.{% endblock %}
 
 {% block meta_description %}
-  Get support for Apache Kafka, from Canonical. 24/7 or weekday support and up to ten years security patching per release track.
+  Get support for Apache Kafka, from Canonical. 24/7 or weekday support and up to fifteen years security patching per release track.
 {% endblock %}
 
 {% block body_class %}