Refactor CI setup #603

Namespace: <a href="https://detailurl.setting.custom-console-url-namespace.is.not.configured" rel="nofollow">ocp-serverless-tenant
PipelineRun: <a href="https://konflux-ui.apps.kflux-prd-rh02.0fk9.p1.openshiftapps.com/ns/ocp-serverless-tenant/pipelinerun/kn-client-test-servingcontainer-116-on-pull-request-npv2j" rel="nofollow">kn-client-test-servingcontainer-116-on-pull-request-npv2j

Success

Konflux kflux-prd-rh02/kn-client-test-servingcontainer-116-on-pull-request has successfully validated your commit.

Status	Duration	Name
✅ Succeeded	15 seconds	init
✅ Succeeded	36 seconds	clone-repository
✅ Succeeded	24 seconds	prefetch-dependencies
✅ Succeeded	2 minutes	build-images
✅ Succeeded	16 seconds	build-image-index
✅ Succeeded	3 minutes	clair-scan
✅ Succeeded	1 minute	deprecated-base-image-check
✅ Succeeded	44 seconds	sast-snyk-check
✅ Succeeded	1 minute	clamav-scan
✅ Succeeded	1 minute	build-source-image
✅ Succeeded	54 seconds	sast-shell-check
✅ Succeeded	1 minute	rpms-signature-scan
✅ Succeeded	17 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	1 minute	sast-unicode-check
✅ Succeeded	49 seconds	apply-tags
✅ Succeeded	22 seconds	push-dockerfile
✅ Succeeded	10 seconds	show-sbom