Yarn postinstall hook fails on MacOS

$ cd /path/to/console/frontend
$ yarn install

$ ./scripts/check-patternfly-modules.sh && yarn prepare-husky && yarn generate
Checking \e[0;33myarn.lock\e[0m file for PatternFly module resolutions
grep: invalid option -- P
usage: grep [-abcdDEFGHhIiJLlMmnOopqRSsUVvwXxZz] [-A num] [-B num] [-C[num]]
	[-e pattern] [-f file] [--binary-files=value] [--color=when]
	[--context[=num]] [--directories=action] [--label] [--line-buffered]
	[--null] [pattern] [file ...]