build_wheels.sh: Build wheels a more modern way
Use the build
package and python -m build --wheel
to build the
Scap wheel. This avoids the following warning:
SetuptoolsDeprecationWarning: setup.py install is deprecated.
!!
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Please avoid running ``setup.py`` directly.
Instead, use pypa/build, pypa/installer or other
standards-based tools.
See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.
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!!
Also, announce the major stages of the build process in build_wheels.sh
.