update test

Author: chargome

dev-packages/browser-integration-tests/suites/public-api/metrics/init.js

@@ -4,7 +4,9 @@ window.Sentry = Sentry;
 
 Sentry.init({
   dsn: 'https://[email protected]/1337',
-  _enableTraceMetrics: true,
+  _experiments: {
+    enableTraceMetrics: true,
+  },
   release: '1.0.0',
   environment: 'test',
   autoSessionTracking: false, // Was causing session envelopes to be sent