Use npx for changeset #257

Job	Run time
charts-tests / Chart Data Extractor - Build and test	28s
build-template / Build E2B Template	9m 8s
python-sdk / Python SDK - Build and test	3m 4s
js-sdk / JS SDK - Build and test	1m 59s
performance-tests / Performance tests	1m 36s
cleanup-build-template / Cleanup Build Template	18s
	16m 33s

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