Improve to use multi-arch images when building services#250

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glours wants to merge 3 commits intodockersamples:mainfrom glours:multiarch-support

Commits on Oct 4, 2022

follow the compose specification and remove all version property in compose files
glours
committed
update versions of Dockerfile base images
glours
committed
add buildplatform to first target of all Dockerfile to ensure compilation step is done using the user platform
glours
committed