Add verification step to ec-cli image build #2280

Namespace: <a href="https://detailurl.setting.custom-console-url-namespace.is.not.configured" rel="nofollow">rhtap-contract-tenant
PipelineRun: <a href="https://console.redhat.com/application-pipeline/ns/rhtap-contract-tenant/pipelinerun/cli-main-ci-on-pull-request-4gn99" rel="nofollow">cli-main-ci-on-pull-request-4gn99

Success

Red Hat Konflux/cli-main-ci-on-pull-request has successfully validated your commit.

Status	Duration	Name
✅ Succeeded	5 seconds	init
✅ Succeeded	19 seconds	clone-repository
✅ Succeeded	3 minutes	prefetch-dependencies
✅ Succeeded	4 minutes	build-container
✅ Succeeded	6 seconds	build-image-index
✅ Succeeded	19 seconds	build-tekton-bundle
✅ Succeeded	7 seconds	apply-tags
✅ Succeeded	13 seconds	rpms-signature-scan
✅ Succeeded	1 minute	clamav-scan
✅ Succeeded	11 seconds	deprecated-base-image-check
✅ Succeeded	44 seconds	clair-scan
✅ Succeeded	1 minute	sast-snyk-check
✅ Succeeded	11 seconds	push-dockerfile
✅ Succeeded	24 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	2 minutes	build-source-image
✅ Succeeded	9 seconds	show-sbom