wpt: force a wakeup of the wbauth server before the test

.github/workflows/e2e-test.yml

@@ -192,10 +192,12 @@ jobs:
 
       - run: chmod a+x ./lightpanda
 
+      # force a wakup of the auth server before requesting it w/ the test itself
+      - run: curl https://${{ vars.WBA_DOMAIN }}
+
       - name: run wba test
         shell: bash
         run: |
-
           node webbotauth/validator.js &
           VALIDATOR_PID=$!
           sleep 5