fix(templates): Update PostgreSQL version in error message

Updates the programming error message to reflect the correct minimum
PostgreSQL version requirement (14 or later), aligning with the changes
introduced in v4.3.0.

Author: pheus

netbox/templates/exceptions/programming_error.html

@@ -17,7 +17,7 @@
     <i class="mdi mdi-alert"></i>
     <strong>{% trans "Unsupported PostgreSQL version" %}.</strong>
     {% blocktrans trimmed %}
-      Ensure that PostgreSQL version 12 or later is in use. You can check this by connecting to the database using
+      Ensure that PostgreSQL version 14 or later is in use. You can check this by connecting to the database using
       NetBox's credentials and issuing a query for <code>SELECT VERSION()</code>.
     {% endblocktrans %}
   </p>