try specifying platform

Author: Zeitsperre

.github/workflows/docker-testing.yml

@@ -45,6 +45,7 @@ jobs:
           load: true
           cache-from: type=gha
           cache-to: type=gha,mode=max
+          platforms: linux/amd64
           provenance: mode=max
           sbom: true
           outputs: type=cacheonly