buildx failed with: ERROR: failed to solve: process "/bin/sh -c apt-get upgrade -y" did not complete successfully: exit code: 100

buildx failed with: ERROR: failed to solve: failed to push ghcr.io/rems-project/cerberus/cn:release-redhat: unexpected status from POST request to https://ghcr.io/v2/rems-project/cerberus/cn/blobs/uploads/: 403 Forbidden

Failed to save: Failed to CreateCacheEntry: Received non-retryable error: Failed request: (409) Conflict: cache entry with the same key, version, and scope already exists