test: increase start timeout for Safari taking >40s

Author: bashmish

web-test-runner.bs.config.mjs

@@ -40,6 +40,8 @@ export default {
   ...config,
   concurrentBrowsers: 5,
   browsers,
+  testsStartTimeout: 2 * 60_000,
+  testsFinishTimeout: 4 * 60_000,
   plugins: [
     legacyPlugin(),
   ],