Docker stable slim adduser missing (#1891)
## Description The debian slim image no longer has the adduser wrapper script, causing the docker build to fail to add the user. ## Which issue it fixes? Closes #1888 (opened by me, reported to me by @hodlonaut) --- Additionally this removes the sudo installation and usage during the build process. The root user can still be used via `docker exec -it -u root bash` if an operator wishes to manage the container without rebuilding it. --------- Co-authored-by: RdLrT <[email protected]>
