add coreutils to cp search terms (#10738) #63

Job	Run time
plugins (windows-latest)	13m 1s
tests (windows-latest, default)	15m 40s
fmt-clippy (windows-latest, default)	10m 17s
std-lib-and-python-virtualenv (ubuntu-20.04, py)	5m 56s
plugins (macos-latest)	5m 3s
tests (macos-latest, default)	13m 30s
fmt-clippy (windows-latest, extra)	11m 21s
std-lib-and-python-virtualenv (macos-latest, py)	6m 57s
plugins (ubuntu-20.04)	3m 59s
tests (ubuntu-20.04, default)	12m 0s
fmt-clippy (macos-latest, default)	6m 1s
std-lib-and-python-virtualenv (windows-latest, py)	14m 2s
tests (ubuntu-20.04, dataframe)	14m 18s
fmt-clippy (macos-latest, extra)	6m 27s
tests (ubuntu-20.04, extra)	11m 54s
fmt-clippy (ubuntu-20.04, default)	3m 31s
fmt-clippy (ubuntu-20.04, dataframe)	5m 11s
fmt-clippy (ubuntu-20.04, extra)	3m 54s
	2h 43m 2s

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