workflows: fix release image display digest step

[mtardy]

Docker build push action thought it was a good idea to add a build summary and uploading artifacts that can't be downloaded via the GitHub actions/download-artifact so we need to adapt each of our workflows.

See https://github.com/docker/build-push-action?tab=readme-ov-file#summaries and actions/toolkit#1874.

[FedeDP]

What about setting the DOCKER_BUILD_SUMMARY env variable to false instead?

Summaries are enabled by default, but can be disabled with the DOCKER_BUILD_SUMMARY environment variable.

https://github.com/docker/build-push-action?tab=readme-ov-file#environment-variables

Perhaps even DOCKER_BUILD_RECORD_UPLOAD might work fine if we want to retain the summary but kill the upload (?)

EDIT: either case, we could just set them as repository-wide envs and we should be good to go, without touching any workflow.

[mtardy]

Perhaps even DOCKER_BUILD_RECORD_UPLOAD might work fine if we want to retain the summary but kill the upload (?)

oh this is what I was looking for but in the args not in the env variables

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[mtardy]

You're right, I set up the DOCKER_BUILD_RECORD_UPLOAD variable repository wide

[mtardy]

lol it didn't work I wonder why https://github.com/cilium/tetragon/actions/runs/18725426276/job/53410703924

[FedeDP]

Check build summary support
Build summary supported!

I did not expect anything different 🤣
That's weird btw, seems like the action is not seeing DOCKER_BUILD_RECORD_UPLOAD=false being set :/

EDIT: it just checks process.env.FOO: https://github.com/docker/build-push-action/blob/9e436ba9f2d7bcd1d038c8e55d039d37896ddc5d/src/main.ts#L277