Upgrade deprecated actions (#4193)
In response to some of our actions starting to fail deprecate all of the
actions that don't work anymore due to using Node 10/12
- [Looks like upload artefact is safe to
upgrade](https://github.com/actions/upload-artifact/blob/main/docs/MIGRATION.md)
we don't seem to overwrite files
- [Same for
download](https://github.com/actions/download-artifact/blob/main/docs/MIGRATION.md)
