Automate publication of node modules based on dual-tag release management process

[pospi]

• configure Github CI pipeline with npmjs.com project publish authorization
• setup Github build job for PNPM to rebuild & publish node modules, triggered on tag npm-modules-[0-9]+.[0-9]+.[0-9]+**

[pospi]

• also need to fix the trigger for the happ-[0-9]+.[0-9]+.[0-9]+** tag while we're at it, doesn't seem to be triggered

[Connoropolous]

I realized it's because the tag was on a commit that was prior to the change to the Github Actions workflows instructions. I propose just to tag current tip of sprout

[Connoropolous]

I've just pushed one or two fixes to the workflow file, to make this work, and I've tagged sprout as happ-0.0.1-alpha.6