Snooze jquery warning for a week (#16515)

Snooze the jquery-rails gem security warning while we work on updating it safely
See this PR for updating the gem: #16514
Updating jquery-rails updates loofah to a version that revealed a bug in brakeman. See: flavorjones/loofah#211
Updating brakeman is going to be a more complicated step so snoozing to unblock prs for now

.security.yml

@@ -1,3 +1,4 @@
 CVES:
 # placeholder to make non-nil array
   CVE-no-such-number: 2020-01-01
+  CVE-2020-11023: 2021-07-26