Workaround build-push-action download-artifact incompatibility

[GDYendell]

• https://github.com/docker/build-push-action/issues/1167
• https://docs.docker.com/build/ci/github-actions/build-summary/#disable-build-record-upload

Working build: https://github.com/DiamondLightSource/eiger-fastcs/actions/runs/10183281687/job/28167943885

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 71.16%. Comparing base (a15718e) to head (aff074d).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #42 +/- ## ======================================= Coverage 71.16% 71.16% ======================================= Files 4 4 Lines 274 274 ======================================= Hits 195 195 Misses 79 79 ```

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