feat: Add buildpacks for building docker image

[Ch4s3r]

• Use semantic-release github action
• Use buildpack for optimized docker images
  • Only build amd64 image as arm is not supported by now from paketo buildpacks
  • smaller image size 350 vs 100mb now
  • publishes latest and versioned tag
• Remove unnecessary matrix build from test
• Add config to package.json that the package is public (as the github action fails to publish to npmjs otherwise with 402)

npmjs: docker:

• [x] Test that merging PR creates new version
• [x] Add changelog entry

[Ch4s3r]

Always get this error:

An error occurred while running semantic-release: Error: Command failed with exit code 128: git tag v2.22.0 fcbbbb3152e4be8453cb4d03d8f8ad50f94cab4c
fatal: tag 'v2.22.0' already exists

Need to check how to skip it or why the tag is there.

Update: deleted all tags in the fork

[Ch4s3r]

@shine2lay @jusx please have a look :)

[hemeroc]

Hi, that would be real cool to have. @shine2lay @jusx is there any blocker for this?

[github-actions[bot]]

:tada: This PR is included in version 2.22.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: