add distribution scripts

This allows to create a tarball that users can just install.

Based on !27 (merged), but with a couple of changes:

• now target/bpf gets cleaned up before running cargo
• to force rebuilding the bpf objects, we need to tell build.rs by touching the base directory.

All in all, this should create a Fedora 37+ compatible build.

We'll see if we need to provide a debian version in the future.