Should we be pushing the “bases” images to Docker Hub?

see https://airbytehq.slack.com/archives/C01AHCDHCKE/p1610110133157400

Building works, but it is kind of unintuitive that these are the only images we use that don’t have a version on Docker Hub

it could help making it slightly easier for newcomers

I would say: YES 😄

To do a ./gradle build does generate a lot of resources on my system i don't need to create new integrations.

Also the only reason I ran into this is because i'm terrible at reading step by step instructions on how to do stuff. I just start and then see what happens.