[BUG] - since v0.6.6 linting from stdin doesn't work anymore with the command: kube-linter lint -

[janput]

System info:

• OS: Linux

Describe the bug
It used to be possible to run kube-linter with a command like this:
cat template.yaml | kube-linter lint -
Now this gives an error like so:
Error: loading from path "/opt/metrics/-": lstat /opt/metrics/-: no such file or directory

There are 2 ways to get it working again:

• cat template.yaml | kube-linter lint /dev/stdin
• kube-linter lint <(cat template.yaml)