Bug 1636656 - Update Clobber r=aklotz

Differential Revision: https://phabricator.services.mozilla.com/D76195

CLOBBER

@@ -22,4 +22,4 @@
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.
 
-Bug 1632434 - Update to ICU 67 requires clobber
+Bug 1636389 - Moved a file in NSS, causing stale build state