refactor: Add a new tox environment to build RQL wheel

- Add a new tox environment: build-wheel:
  to build wheel using `build_wheel.sh` shell script

- Modify the pypi-publish environment:
  build the wheel using `build_wheel.sh` shell script
6 jobs for !61 with topic/default/build_wheel in 1 minute and 38 seconds (queued for 5 seconds)
latest detached
Status Name Job ID Coverage
  Tests
passed check-manifest #422108

00:00:55

passed flake8 #422106

00:01:00

passed mypy #422107

00:01:31

passed py3 #422104

00:01:10

passed py3-from-forge #422105

00:01:31

 
  After Tests
failed trigger-cubicweb-pipeline