Replace cockput updated 'reboot' needle with 'restart' needle

The 'reboot' button isn't always there in this case, it seems,
but the 'restart services' one is more likely to be. So let's
switch.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/cockpit/cockpit_updates_updated-restart-20210422.json

@@ -1,10 +1,10 @@
 {
   "area": [
     {
-      "width": 56,
-      "ypos": 282,
-      "type": "match",
+      "ypos": 294,
       "height": 19,
+      "width": 56,
+      "type": "match",
       "xpos": 319
     }
   ],