* build: improve multistage docker build
* build: add dockerfile for ci
* build: add BuildDockerMultiplatform function in build.sh for ci
* ci: change build method
* build: add missing mod download command to the Dockerfile
* build: revert changes made ffmpeg installed
* build: use musl build for docker release
* ci: apply to dev version
* fix: don't login on pr
* fix: don't build_docker_with_aria2 on pr
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Co-authored-by: Andy Hsu <i@nn.ci>
This is to enable the use case where the stock Docker image is used with
different flags. E.g. `docker run xhofe/alist:latest ./alist server --data=mydata`
This was the behavior until PR#2818 changed it. This would make the image more usable.