R-CMD-check.yaml

addresses #578 - use dplyr::select insstead of select_ #40

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Job	Run time
macos-latest (release)	2m 33s
windows-latest (release)	5m 26s
ubuntu-latest (devel)	6m 58s
ubuntu-latest (release)	3m 29s
ubuntu-latest (oldrel-1)	3m 33s
	21m 59s