chore(psalm): add CommentsEventListener::getEvent() to deprecated baseline

Signed-off-by: Anna Larch <anna@nextcloud.com>
AI-Assisted-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: miaulalala

build/psalm-baseline.xml

@@ -52,6 +52,9 @@
       <code><![CDATA[CommentsEvent::EVENT_PRE_UPDATE]]></code>
       <code><![CDATA[CommentsEvent::EVENT_UPDATE]]></code>
     </DeprecatedConstant>
+    <DeprecatedMethod>
+      <code><![CDATA[getEvent]]></code>
+    </DeprecatedMethod>
   </file>
   <file src="apps/comments/lib/MaxAutoCompleteResultsInitialState.php">
     <DeprecatedMethod>