Switch from raven to sentry_sdk

src/pretix/base/templates/500.html

@@ -8,13 +8,13 @@
         <h1>{% trans "Internal Server Error" %}</h1>
         <p>{% trans "We had trouble processing your request." %}</p>
         <p>{% trans "If this problem persists, please contact us." %}</p>
-        {% if request.sentry.id %}
+        {% if sentry_event_id %}
             <p>
                 {% blocktrans trimmed %}
                     If you contact us, please send us the following code:
                 {% endblocktrans %}
                 <br>
-                {{ request.sentry.id }}
+                {{ sentry_event_id }}
             </p>
         {% endif %}
         <p>{{ exception }}</p>