#37902: It's time to change the password in the admin panel. Problem with the link

- Fix 'It's time to change your password' link in admin panel

Author: BeggiNN

app/code/Magento/PageCache/etc/events.xml

@@ -48,7 +48,7 @@
     <event name="model_save_commit_after">
         <observer name="flush_cache_after_model_save" instance="Magento\PageCache\Observer\FlushCacheByTags" />
     </event>
-    <event name="backend_auth_user_login_success">
+    <event name="admin_user_authenticate_after">
         <observer name="FlushFormKey" instance="Magento\PageCache\Observer\FlushFormKey"/>
     </event>
     <event name="customer_login">