Running with defaults results in error on the CI config itself

[MikaelElkiaer]

Using the example configuration, using all defaults, yields the following error:

ERR - .github/workflows/ci.yml: Missing 'metadata' key

as kubeval attempts to validate the workflow itself.

[MikaelElkiaer]

This could be fixed by #3

[MikaelElkiaer]

As a bonus, it seems like kubeval returns exit code 1 if there are warnings - such as schemas missing for CRDs.
This exit code is interpreted as error and therefore the step fails.

Edit: This works now, for some reason that I cannot figure out.