test: use successRate for gateway conformance tests #245

Job	Run time
js-test-and-release / check	2m 8s
js-test-and-release / test-chrome-webworker	52s
js-test-and-release / test-firefox	50s
js-test-and-release / test-chrome	44s
js-test-and-release / test-firefox-webworker	40s
js-test-and-release / test-node (windows-latest, lts/*)	2m 48s
js-test-and-release / test-node (ubuntu-latest, lts/*)	36s
js-test-and-release / test-node (macos-latest, lts/*)	2m 24s
js-test-and-release / test-electron-main	54s
js-test-and-release / test-electron-renderer	25s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	45s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	49s
js-test-and-release / test-webkit (macos-latest, lts/*)	2m 19s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	2m 49s
js-test-and-release / release-check	0s
js-test-and-release / release	0s
	19m 3s

Provide feedback