In order to support build by bufs, we need the following:

• Look into whether the JVM-based executables can be used instead of the native build of scalapb since this also supports windows (https://repo1.maven.org/maven2/com/thesamet/scalapb/protoc-gen-scala/0.11.12/)

• Automatically upload releases of scalapb, scalapb-validate and zio-grpc to buf, through the respective projects .github/workflow/release.yml - would it be possible to use the universal (Java based) executable.

• Add buf as an installation method in docs/main/markdown/installation.md. Add note that this support is experimental, add an FAQ in faq.md linking to this section.