Version up zc.buildout 3.0.1+slapos004.

• Also version up scipy==1.12.0 because scipy==1.8.1 is not compatible with Python 3.11. This fixes slapos-testing/software-py3next. Installing scipy==1.12.0 with zc.recipe.egg:custom requires zc.buildout 3.0.1+slapos004 because scipy no longer has a setup.py, only a pyproject.toml.

• Also fix/optimize software/rapid-cdn after changes to zc.recipe.egg:develop in zc.buildout 3.0.1+slapos004.

• Also add SR test for slapos-testing/software*.cfg, just to verify it compiles and instantiates.