feat: Add helm chart release gh action

[gdziwoki]

This PR adds a GH action that will release the chart on each commit to master
For this to work you will need to:

• set up an empty gh-actions branch

git reset --hard
git commit --allow-empty -m "fresh and empty gh-pages branch"
git push origin gh-pages

• add a personal token as a secret to this repo, named GH_TOKEN

[gdziwoki]

@lwei-wish could you please take a look?