Update CodeQL workflow

[lucacome]

• Added check for javascript (files in the docs folder)
• Added the cancel for the workflow inside the workflow itself (I think it makes it more clear to understand what happens)

[pleshakov]

@lucacome I wonder if we really need JavaScript checking? that code is not developed in our repo, just copied to our repo. So even if a problem is found, it will have to be addressed in a different repo.
cc @jputrino

[jputrino]

@lucacome I wonder if we really need JavaScript checking? that code is not developed in our repo, just copied to our repo. So even if a problem is found, it will have to be addressed in a different repo.
cc @jputrino

Agreed, @pleshakov -- it would be great to have this type of check in the source repo, but I don't think it's needed here.

[lucacome]

@pleshakov I thought it wouldn't hurt to have a check in this repo, since the code is here, but I've removed it.