Breaking
* Phylum CLI installs before v6.0.0-rc3 are no longer supported. That release introduced a number of breaking changes which are only functional with this release of the `phylum` package. ([`35adcaf`](https://github.com/phylum-dev/phylum-ci/commit/35adcaf694368987433da471e5a657190aecfb9f))
* The `--lockfile`/`-l` argument to to the `phylum-ci` script has changed to `--depfile`/`-d`. ([`35adcaf`](https://github.com/phylum-dev/phylum-ci/commit/35adcaf694368987433da471e5a657190aecfb9f))