Previously we used tags like "1.109.0" and "py-1.109.0".
Since Python bindings are always released
at the same time as the core,
it is easier to use a single tag for them.
"v" prefix is added to make matching by "v*" easier
in CI and scripts.
musllinux images miss PyPy interpreters,
we want to skip building PyPy wheels for musl
instead of failing the build.
Also remove workaround from CI scripts.
Remove unused docker-doxygen Dockerfile.
Switch scripts/run-doxygen.sh from bash to sh.
Use docker.io/alpine image instead of unsupported hrektts/doxygen