Bug 1695965 - Update test_scrollbar_colors expectations for windows+n…

…nt. r=mstange

They're now much more similar to non-nnt with the arrows fixed.

Differential Revision: https://phabricator.services.mozilla.com/D106948

widget/tests/test_scrollbar_colors.html

@@ -71,11 +71,11 @@
 
 const WIN_NNT_REFERENCES = [
   // Yellow background
-  ["255,255,0", 7396],
+  ["255,255,0", 6889],
   // Blue scrollbar face
-  ["0,0,255", 1272],
+  ["0,0,255", 612],
   // Cyan scrollbar track
-  ["0,255,255", 1204],
+  ["0,255,255", 2355],
 ];
 
 const MAC_NNT_REFERENCES = MAC_REFERENCES;