Use UBI8 based base image and builder image #1172

Namespace: <a href="https://detailurl.setting.custom-console-url-namespace.is.not.configured" rel="nofollow">rh-openshift-builds-tenant
PipelineRun: <a href="https://console.redhat.com/application-pipeline/ns/rh-openshift-builds-tenant/pipelinerun/source-to-image-on-pull-request-lplhh" rel="nofollow">source-to-image-on-pull-request-lplhh

Success

Red Hat Konflux/source-to-image-on-pull-request has successfully validated your commit.

Status	Duration	Name
✅ Succeeded	5 seconds	init
✅ Succeeded	18 seconds	clone-repository
✅ Succeeded	14 seconds	sast-snyk-check
✅ Succeeded	1 minute	build-container
✅ Succeeded	21 seconds	clair-scan
✅ Succeeded	9 seconds	sbom-json-check
✅ Succeeded	7 seconds	apply-tags
✅ Succeeded	15 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	9 seconds	deprecated-base-image-check
✅ Succeeded	33 seconds	clamav-scan
✅ Succeeded	6 seconds	show-sbom
✅ Succeeded	12 seconds	show-summary