Bump xunit from 2.5.0 to 2.6.5 #4151

Job	Run time
upload-event-file	2s
build (windows-latest)	3m 5s
build-for-e2e-test (windows-latest)	2m 48s
build (ubuntu-latest)	4m 14s
build-for-e2e-test (ubuntu-latest)	1m 38s
build (macos-latest)	3m 18s
build-for-e2e-test (macos-latest)	1m 47s
e2e-test (macos-latest, Ghes)	3m 38s
e2e-test (macos-latest, AdoBasic)	8m 55s
e2e-test (macos-latest, AdoCsv)	7m 26s
e2e-test (macos-latest, Bbs)	10m 38s
e2e-test (macos-latest, Github)	3m 54s
e2e-test (ubuntu-latest, AdoBasic)	6m 51s
e2e-test (ubuntu-latest, AdoCsv)	6m 53s
e2e-test (ubuntu-latest, Bbs)	9m 27s
e2e-test (ubuntu-latest, Ghes)	2m 3s
e2e-test (ubuntu-latest, Github)	2m 25s
e2e-test (windows-latest, AdoBasic)	9m 40s
e2e-test (windows-latest, AdoCsv)	9m 18s
e2e-test (windows-latest, Bbs)	11m 29s
e2e-test (windows-latest, Ghes)	5m 29s
e2e-test (windows-latest, Github)	6m 23s
publish	0s
	2h 1m 21s

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