Adding eks-stig-kubernetes-v1r6

[crenzoaws]

Closes #1247

[mozillazg]

@crenzoaws Thanks for your contribution! I'll review it when I have free time. Would you please update the document at https://github.com/aquasecurity/kube-bench/blob/main/docs/platforms.md to include this new benchmark?

[crenzoaws]

@mozillazg

• The update to https://github.com/aquasecurity/kube-bench/blob/main/docs/platforms.md is included.
• Submitted another commit to fix the lint errors identified in the previous check

[mozillazg]

@crenzoaws Thanks for your update. I'll review it later.

[mozillazg]

Thanks for your contribution! Added some comments please check again, thanks!

[crenzoaws]

@mozillazg - Thanks for all your feedback. I've incorporated all the changes you've identified.

[crenzoaws]

Upstream package error: sgerrand/alpine-pkg-glibc#185

[mozillazg]

@mozillazg - Thanks for all your feedback. I've incorporated all the changes you've identified.

Thanks for your patience. It looks like the integration/testdata/Expected_output_stig.data file needed to be updated too.

[mozillazg]

LGTM, Thanks for your contribution!