GNU Radio 3.10: Add multiple fixes
- Remove conda receipe. Unless this is tested, I assume it's superfluous boilerplate code.
- Add missing import (thanks @knegge !)
- Update base image in build job to debian bookworm
- Install missing dependency hamlib-utils in test job
As the gnuradio3.10
requires some history-rewriting anyway (there are commits with missing sign-off included!), I left the fixup-commits as is, to be applied by whoever will do the rebasing.