Bug 1696423 - Enable Firefox window recorder on windows10-shippable. r=perftest-reviewers,davehunt

Differential Revision: https://phabricator.services.mozilla.com/D107212

taskcluster/ci/test/browsertime-desktop.yml

@@ -131,7 +131,7 @@ browsertime-tp6:
     mozharness:
         extra-options:
             by-test-platform:
-                windows10.*shippable.*:
+                windows10.*shippable.*-qr.*:
                     - --chimera
                     - --browsertime
                     - --no-conditioned-profile