ĞDev5 smiths

I wanted to list all your received smith cert, but since it’s not yet available in the custom indexer https://gdev-indexer-graphiql.p2p.legal/, I wanted to use the generic indexer https://hydra.gdev.librelois.fr/ but it’s down, so I wanted to setup one (like this). I do not want to put it on the same server as my gdev validator, so I needed to setup a new node, and because it’s the occasion to test the docker image produced in your MR !123, I tried to use pinidh/duniter-v2s:sha-3189d769 but it seems to be private, can you make it public?

[edit] I added a branch release/poka-chainspec-gdev5-pini-docker on your commit to get the CI running on this one.