v1.6.1

What's Changed

"above" -> "below" by @ismailarilik in https://github.com/docker/docker-bench-security/pull/540
handle "null" values and missing jq by @halfluke in https://github.com/docker/docker-bench-security/pull/541
feat: use SHA instead of tags for base image by @UlisesGascon in https://github.com/docker/docker-bench-security/pull/543
update check ID and add check groups for CIS Controls v8 by @martipoe in https://github.com/docker/docker-bench-security/pull/546

@ismailarilik made their first contribution in https://github.com/docker/docker-bench-security/pull/540
@halfluke made their first contribution in https://github.com/docker/docker-bench-security/pull/541
@UlisesGascon made their first contribution in https://github.com/docker/docker-bench-security/pull/543
@martipoe made their first contribution in https://github.com/docker/docker-bench-security/pull/546

Full Changelog: https://github.com/docker/docker-bench-security/compare/v1.6.0...v1.6.1