ci: fix broken publish + changeset integrity

[tynes]

Description
The go-builder and js-builder failed to publish again, this time it says that the dockerfile doesn't exist. I updated the config to work differently to see if this works

https://github.com/ethereum-optimism/optimism/runs/5853892666?check_suite_focus=true

Additional context

/usr/bin/docker buildx build --file ./Dockerfile --iidfile /tmp/docker-build-push-S58KMP/iidfile --tag ethereumoptimism/go-builder:0.0.2 --tag ethereumoptimism/go-builder:latest --metadata-file /tmp/docker-build-push-S58KMP/metadata-file --push ./ops/docker/go-builder
#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 2B done
#1 DONE 0.0s

#2 [internal] load .dockerignore
#2 transferring context:
error: failed to solve: failed to read dockerfile: open /tmp/buildkit-mount4075667921/Dockerfile: no such file or directory
Error: buildx failed with: error: failed to solve: failed to read dockerfile: open /tmp/buildkit-mount4075667921/Dockerfile: no such file or directory

Metadata

• Fixes #[Link to Issue]

[changeset-bot]

⚠️ No Changeset found

Latest commit: 4f0b504

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[optimisticben]

lgtm

[mergify]

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[mergify]

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