IPNI Helm charts

Charts for the IPNI services. Values for each box live in ipni/infra; nothing box-specific belongs here.

helm repo add ipni https://ipni.github.io/charts/
helm repo update ipni

A merge to main that bumps a chart's version publishes it as a GitHub Release, and adds it to the index on gh-pages. Publishing deploys nothing: a box moves only when its chartVersion changes in ipni/infra.

Published versions are immutable. Change a chart by bumping version.