The pinned daily Noble image was pruned and now returns HTTP 404. Use the immutable Ubuntu release build and its matching checksum instead.
Default validate-single-docker to ubuntu-2404 so the presubmit command does not need to repeat the image name.
Signed-off-by: Kay Yan <kay.yan@daocloud.io>
* image-builder: run validation locally with BuildKit
* upadte checksum
* set BuildKit no-process-sandbox flag for CI
* run BuildKit with rootless-safe daemon flags in CI
* update
* updating root logic
* fix ci failure for can't enable NoProcessSandbox
* switch to stable url
* add --oci-worker-no-process-sandbox ci flag in root path
* add more support
* add validate-docker and validate-single docker