Also drop the dependency on the Python3 `packaging` package, which was
dropped upstream with commit 3129d40 [0].
[0] 3129d40956
Signed-off-by: Christoph Heiss <christoph@c8h4.io>
- upstream switched from using perl to python3 for running tests.
- the build process now relies on `curl-config` being present
- man pages now land in a separate output
Signed-off-by: Christoph Heiss <christoph@c8h4.io>