fast alpine-based static build in CI

[code-of-kpp]

We use Drone CI and still current pipelines are huge and not fit their limits from time to time.
.droneci/config.yml file based on alpine would save us some time because of faster setup.

The hardest part would be to create python wheels compatible with anywheel, it would probably require something like LDFLAGS="-Wl,-Bstatic -lstdc++ -lc -ldl -Wl,-Bdynamic" to produce .so files (python extensions) that don't depend on libc/musl