GitLab CI: add firmware upload to firmware.c.f.n
Upload successful build image files to firmware.c.f.n.
This has still two corner cases/issues:
- If sftp creates directory at 23:59:59 & scp runs at 00:00:00 it will fail.
- As pipeline takes ~18 hours it will happen often that not all firmware images have the same date.
- If there are two (or more) builds at the same day the latter will overwrite the former.
Should these issues be solved in this MR or separately?
Edited by txt.file