image-builder: run validation with Dind (#13212)

* 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

test-infra/image-builder/cluster.yml

@@ -1,6 +1,6 @@
 ---
 - name: Build kubevirt images
-  hosts: image-builder
+  hosts: "{{ kubevirt_images_target_host | default('image-builder') }}"
   gather_facts: false
   roles:
     - kubevirt-images