0.9.40

Release pipeline for multiarch binaries and an image (#432)

* add release binaries

* test

* Test builds

* Install protobuff

* Install protobuff for mac and windows

* use sudo

* workaround windows warning

* typo

* typo2

* github vars at their best

* remove RUSTFLAGS

* remove windows instead

* mint release

* undebug

* more docs; build binary for an image

* Containerfile and joint pipeline to build-publish it

* debug workspace

* debug workspace 2

* debug workspace 3

* undebug, add dependabot

* expose more ports

* edit README; remove old CI

* edit github context variables

* fix COPY

* fix COPY chown

* fix GLIBCXX error

* optimize Containerfile

* don't cache the release

* Update README.md