Issue #3461734: Highlight pattern uses callout class for color_schema

Closes #3461734

templates/patterns/highlight/pattern-highlight.html.twig

@@ -4,7 +4,7 @@
 {% endif %}
 
 {% if color_schema %}
-  {% set attributes = attributes.addClass('fr-callout--' ~ color_schema) %}
+  {% set attributes = attributes.addClass('fr-highlight--' ~ color_schema) %}
 {% endif %}
 
 {% if text %}