* Bump all dependencies & disable the pyo3 feature by default.
* Make the Docker image cross-compile without QEMU emulation
* Add a build cache on the Docker image
Adds a Github Actions workflow to publish containers on merges to main
and when new tags are pushed.
As part of the change, cargo will now use the release when building the
published containers, but default to the dev profile when building the
container locally.
Signed-off-by: Danny Seymour danny@seymour.family
