Restore docker image cache

[Deeds67]

It looks like an image is successfully cached in the build job:

Docker image saved to: /tmp/.docker-cache/digitalservicebund/a2j-kommunikationsplattform_241bc0f75e757bbc0dadc97d24c48b52ccfcdb87.tar

However in the build-and-push-image job, the cache is not found:

open /tmp/.docker-cache/digitalservicebund/a2j-kommunikationsplattform_241bc0f75e757bbc0dadc97d24c48b52ccfcdb87.tar: no such file or directory

The problem is that the cache is scoped to the job. The build-and-push-image therefore doesn't have access to the cache from the build job, so we need to restore the cache in this job to have access to it.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Deeds67]

@manuelpuchta FYI

[manuelpuchta]

Thank you for the fix. 💯