Add an autofix for lang-go

[filiptronicek]

Creates the workflow so that Go is updated automatically

[gitpod-io]

[filiptronicek]

Need to figure out how to add gvm to make it available to autofix

[filiptronicek]

@jankeromnes regarding this PR, would you happen to know how we can add additional tools that will be made available to autofix? 🙏

[jankeromnes]

@filiptronicek Hey, very nice work! 💯 Autofix currently runs from an old CircleCI job (from before I joined Gitpod). I've been considering migrating it to a GitHub Action, but meanwhile, this is what the CI job uses:

• Based on gitpod/workspace-full
• Has these tools on top:

            brew install hub
            git clone https://github.com/pyenv/pyenv-update.git $(pyenv root)/plugins/pyenv-update
            pip install codespell
            npm install -g autofix

• I've just now added the following based on gvm's install instructions:

             bash < <(curl -s -S -L https://raw.githubusercontent.com/moovweb/gvm/master/binscripts/gvm-installer)

So, gvm should now be available in future Autofix runs!

[filiptronicek]

Thanks so much for looking into it so quickly, @jankeromnes 🙏.