ericcornelissen/ades

AI Summary: The `ades` tool currently processes all explicit file targets, including those that are not YAML workflow or action manifest files, leading to errors. This issue proposes that `ades` should ignore (skip) any explicit target that is a file and does not have a `.yml` or `.yaml` extension, particularly when scanning multiple targets like `ades ./*`, to prevent errors from non-relevant files.