testing/ospd-*: update source url

the original upstream returns 404, updated to use the fossies.org mirror instead

assigned to @fcolista

Thank you @ptrcnull

Sorry, I ended up in moving this stuff in unmaintained.

These packages are no longer supported and archived by upstream: https://github.com/orgs/greenbone/repositories?page=2&type=all So I would not see any reason to keep it.

Thanks anyway for your contribution, always very much appreciated.

Superseeded by commit 398aaee5

.: Francesco

closed