Not building containers on every PR

[supakeen]

It seems like our GitHub actions for building containers run on every PR, taking up a bunch of time. Let's turn those off?

[supakeen]

There is also some discussion going on the Python Discord regarding how/when containers are built and tagged (?), I'll tag @shtlrs on this since they mentioned that.

[shtlrs]

It seems like our GitHub actions for building containers run on every PR, taking up a bunch of time. Let's turn those off?

Why would you want to turn them off ? How much is it taking when you run them next to the tests worfklows ?

I think it's a good idea to check that whatever changes have been made build correctly and don't break anything. As long as you don't push that image, which is the case already, it's fine IMO. We do this in pydis as well.