feat(enrollment): success page displays expiration date if any

with the TIME_ZONE='America/Los_Angeles' setting, Django will display
the expiration date in that time zone

Django automatically formats the date according to the user's locale
(e.g. 'en' or 'es')

turned off djlint around this section because the different <p> tags in
branches of the {% if %} block was throwing errors and causing weird formatting"

benefits/enrollment/templates/enrollment/success.html

@@ -21,10 +21,17 @@ <h1 class="pb-lg-5 pb-4">{% translate "Success! Your transit benefit is now conn
   <div class="col-12 col-sm-12 col-lg-9">
     <div class="row flex-column-reverse flex-lg-row">
       <div class="col-12 col-lg-7">
-        <p class="pt-lg-4 mt-lg-3">
-          {% block success-message %}
-          {% endblock success-message %}
-        </p>
+        {# djlint:off #}
+        {% if enrollment.supports_expiration %}
+          <h2 class="h3 mb-1">{% translate "Your benefit will expire on" %} {{ enrollment.expires|date }}.</h2>
+          <p>
+        {% else %}
+          <p class="pt-lg-4 mt-lg-3">
+        {% endif %}
+            {% block success-message %}
+            {% endblock success-message %}
+          </p>
+        {# djlint:on #}
         <p class="pt-4">{% translate "Thank you for using Cal-ITP Benefits!" %}</p>
       </div>
       <div class="col-12 col-lg-5">