Update test URL for browser tests to point to helloworld tests

Author: Matthias Stein

gulpfile.js

@@ -154,7 +154,7 @@ gulp.task("run-tests",
         function transportTestUrls() {
             // transport test url to run-browser-tests
             // eslint-disable-next-line max-len
-            const testsAt = mapappsBrowserSync.state.url + "/resources/jsregistry/root/@conterra/mapapps-mocha-runner/latest/mocha.html?boot=/js/tests/test-init.js&timeout=5000&test=sample_tests/all&reporter=tap";
+            const testsAt = mapappsBrowserSync.state.url + "/resources/jsregistry/root/@conterra/mapapps-mocha-runner/latest/mocha.html?boot=/js/tests/test-init.js&timeout=5000&test=sample_helloworld/tests/all&reporter=tap";
             runBrowserTests.push(testsAt);
             return Promise.resolve();
         },