* Update to Debian bullseye
* Install non-editable
Currently editable installation seems to be broken (Python can't find
the ada module if installed in editable mode).
* Drop ada directory after installation
* ada: Fix documentation link
* ada: Adjust source links in Dockerfile
* ada: Update add-on documentation to match current state
* ada: Bump add-on version to 0.9
* ada: Adjust URL to point to repository
* ada: Format YAML with Prettier
* ada: Short build.json