Convert checkov-action to Javascript

[toast-gear]

Same reasons as bridgecrewio/yor-action#5, a conversion would also fix #58 properly without the user having to set anything by avoiding the permission issue entirely.

[nimrodkor]

Are you up for it @toast-gear ? Should be easier since we don't need the branch handling for commits 😄

[toast-gear]

since we don't need the branch handling for commits

😀

I'm afraid in terms of JavaScript I'm a level 0 wizard. Thought I'd raise it though incase someone out there wants to do the work as it would be a good enhancement.