Runs nightly tests on maintenance branches #398

Job	Run time
Run tests of branch 5.0.x on ubuntu-latest with Node 10	1m 24s
Run tests of branch 5.0.x on ubuntu-latest with Node 18	1m 12s
Run tests of branch 5.0.x on windows-latest with Node 10	2m 23s
Run tests of branch 5.0.x on windows-latest with Node 18	3m 20s
Run tests of branch 4.2.x on ubuntu-latest with Node 10	1m 11s
Run tests of branch 4.2.x on ubuntu-latest with Node 18	59s
Run tests of branch 4.2.x on windows-latest with Node 10	2m 37s
Run tests of branch 4.2.x on windows-latest with Node 18	2m 45s
Run tests of branch 4.1.x on ubuntu-latest with Node 10	42s
Run tests of branch 4.1.x on ubuntu-latest with Node 18	3m 10s
Run tests of branch 4.1.x on windows-latest with Node 10	1m 39s
Run tests of branch 4.1.x on windows-latest with Node 18	1m 8s
Run tests of branch 4.0.x on ubuntu-latest with Node 10	42s
Run tests of branch 4.0.x on ubuntu-latest with Node 18	40s
Run tests of branch 4.0.x on windows-latest with Node 10	2m 2s
Run tests of branch 4.0.x on windows-latest with Node 18	1m 6s
	27m 0s

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