feat(integration-tests): Extract tarballs with tar to strip top-level directory; Fix path cleanup utilities.#1661

Bill-hbrhbr merged 14 commits intoy-scope:mainy-scope/clp:mainfrom

Bill-hbrhbr:it-strip-tarball-leading-componentBill-hbrhbr/clp:it-strip-tarball-leading-componentCopy head branch name to clipboard