Add bin/medusa-wrapper to package's installed scripts

Fixes https://github.com/thelastpickle/cassandra-medusa/issues/735.

Tested on a blank EC2 Ubuntu 22.04 instance by running:

sudo apt-get update
sudo apt-get install -y python3-pip
pip install git+https://github.com/thelastpickle/cassandra-medusa.git@radovan/fix-wrapper
logout
(log back in)
$ medusa-wrapper
$

This installs Medusa to /home/ubuntu/.local/lib/python3.10/site-packages/medusa. The wrapper script is in there too now, because poetry does not have a way to bundle it in otherwies.

One other thing I spotted is that the medusa-example.ini file lands in /home/ubuntu/.local/lib/python3.10/site-packages/medusa-example.ini, which is perhaps not the nicest.

thelastpickle / cassandra-medusa

Add bin/medusa-wrapper to package's installed scripts #738

Quality Gate passed