feat(python-sdk): add grep, find, and wc filesystem search operations #685

Job	Run time
plan	29s
build-local-artifacts (${{ join(matrix.targets, ', ') }})	0s
build-global-artifacts	0s
host	0s
publish-pypi	0s
publish-cargo	0s
publish-npm	0s
announce	-1s
	28s

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