feat: add concurrency option to run and exec #866

Job	Run time
js-test-and-release / check	1m 17s
js-test-and-release / test-chrome-webworker	23s
js-test-and-release / test-chrome	31s
js-test-and-release / test-node (windows-latest, lts/*)	3m 16s
js-test-and-release / test-node (ubuntu-latest, lts/*)	2m 38s
js-test-and-release / test-firefox	22s
js-test-and-release / test-node (macos-latest, lts/*)	6m 25s
js-test-and-release / test-firefox-webworker	29s
js-test-and-release / test-webkit (ubuntu-latest, lts/*)	17s
js-test-and-release / test-webkit (macos-latest, lts/*)	1m 34s
js-test-and-release / test-webkit-webworker (ubuntu-latest, lts/*)	10s
js-test-and-release / test-webkit-webworker (macos-latest, lts/*)	1m 18s
js-test-and-release / test-electron-main	29s
js-test-and-release / test-electron-renderer	15s
js-test-and-release / release-check	0s
js-test-and-release / release	0s
	19m 24s

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