Docs (samples): Improve CI trigger defaults for azure-pipelines samples #183

Job	Run time
test-powershell-6-1-container	18s
test-powershell-5-1-windows-2019	1m 27s
test-powershell-5-1-windows-2022	1m 34s
test-powershell-6-2-container	20s
test-powershell-7-0-container	15s
test-powershell-7-1-container	15s
test-powershell-7-2-container	14s
test-powershell-7-4-container	14s
test-powershell-core-linux	20s
test-powershell-7-3-container	19s
test-powershell-core-macos	21s
test-powershell-core-windows	48s
release	15s
	6m 40s

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