hadolint gives multiple errors and warnings for the Dockerfiles

[princerachit]

Bug description

hadolint gives several error and warnings for the docker files of this repo. They used to exist for the older dazzle v1 images too.

Steps to reproduce

You can inspect Dockerfiles using hadolint e.g

gitpod /workspace/workspace-images (princerachit/use-google-artifact-713) $ docker run -v /workspace/workspace-images/:/myvol --rm -i hadolint/hadolint hadolint /myvol/chunks/lang-c/Dockerfile
/myvol/chunks/lang-c/Dockerfile:2 DL3006 warning: Always tag the version of an image explicitly
/myvol/chunks/lang-c/Dockerfile:9 DL3004 error: Do not use sudo as it leads to unpredictable behavior. Use a tool like gosu to enforce root
/myvol/chunks/lang-c/Dockerfile:9 DL3027 warning: Do not use apt as it is meant to be a end-user tool, use apt-get or apt-cache instead
/myvol/chunks/lang-c/Dockerfile:9 DL4006 warning: Set the SHELL option -o pipefail before RUN with a pipe in it. If you are using /bin/sh in an alpine image or if your shell is symlinked to busybox then consider explicitly setting your SHELL to /bin/ash, or disable this check

such errors exist for multiple chunks.

Expected behavior

hadolint should not complain.

Example repository

No response

Anything else?

This issue was created as a result of research from #614 issue