Add CODECOV_TOKEN to autowarefoundation repositories

[xmfcx]

Checklist

• I've read the contribution guidelines.
• I've searched other issues and no duplicate issues were found.
• I've agreed with the maintainers that I can plan this task.

Description

Transitioning from codecov/codecov-action@v3 to codecov/codecov-action@v4, a token is required.

I've added an organization wide CODECOV_TOKEN variable that is accessible through token: ${{ secrets.CODECOV_TOKEN }}.
This will work for all https://app.codecov.io/github/autowarefoundation repositories.

Forks won't need the token, they are handled automatically:

• https://docs.codecov.com/docs/codecov-uploader#if-youre-using-the-action

[xmfcx]

I've updated all tokens for v4 for autowarefoundation organization.