fix: use upgrader to get incoming connections (#282) #340

Job	Run time
js-test-and-release / check	1m 48s
js-test-and-release / test-chrome-webworker	20s
js-test-and-release / test-chrome	16s
js-test-and-release / test-node (windows-latest, lts/*)	2m 19s
js-test-and-release / test-firefox	25s
js-test-and-release / test-node (ubuntu-latest, lts/*)	34s
js-test-and-release / test-node (macos-latest, lts/*)	1m 35s
js-test-and-release / test-electron-main	33s
js-test-and-release / test-firefox-webworker	24s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	1m 8s
js-test-and-release / test-webkit (macos-latest, lts/*)	1m 41s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	1m 8s
js-test-and-release / test-electron-renderer	22s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	1m 59s
js-test-and-release / release-check	3s
js-test-and-release / release	2m 36s
	17m 11s

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