Add a CI job to check CSV integrity

[AerunDev]

As a maintainer of the data pack repository
I would like the CI to check CSV integrity
So that PRs merged don't bring corrupted files

Acceptance criteria

Tip

Maybe a CSV linter already exists. Use it to be sure to have a good start.

• CSVs should always have a header to provide languages
• CSVs columns should always be consistent
• CSVs should be ended by an empty line for Git noise purpose