Update Docker references to GitHub instead DockerHub

Update Docker references to GitHub instead DockerHub

Update Docker references to GitHub instead DockerHub

Update Docker references to GitHub instead DockerHub

CI: build images in PRs, don't run CI on unused files

Update Docker references to GitHub instead DockerHub

Update Docker references to GitHub instead DockerHub

CI: build images in PRs, don't run CI on unused files

Update Docker references to GitHub instead DockerHub

update go image to v1.24

Bump alpine from 3.20 to 3.21 in /base.alpine

Add build_scratch to all target in the Makefile

Add build_scratch to all target in the Makefile

CI: build images in PRs, don't run CI on unused files

CI: build images in PRs, don't run CI on unused files

CI: build images in PRs, don't run CI on unused files

drop dead code

CI: build images in PRs, don't run CI on unused files

Add dk.sh description to the Readme

Add dk.sh description to the Readme

Add Readme section describing implications of mounting Docker socket

change GID of app group when changing UID of app user

go v1.23

Bump golang from 1.22-alpine to 1.23-alpine in /build.go