This document describes the release process for pbjson, pbjson-types and
pbjson-build to crates.io.
Note that pbjson-test is not released as it is only used for testing.
First make a PR to update the version (example #127)
Run the following commands to release pbjson, pbjson-types and pbjson-build
cargo publish -p pbjson
cargo publish -p pbjson-build
cargo publish -p pbjson-types