Modify REadyZ implementation to check for backend only during startup #291

Namespace: <a href="https://detailurl.setting.custom-console-url-namespace.is.not.configured" rel="nofollow">project-kessel-tenant
PipelineRun: <a href="https://console.redhat.com/application-pipeline/ns/project-kessel-tenant/pipelinerun/relations-api-on-pull-request-5v4p9" rel="nofollow">relations-api-on-pull-request-5v4p9

Success

Red Hat Konflux/relations-api-on-pull-request has successfully validated your commit.

Status	Duration	Name
✅ Succeeded	5 seconds	init
✅ Succeeded	18 seconds	clone-repository
✅ Succeeded	1 minute	build-container
✅ Succeeded	14 seconds	rpms-signature-scan
✅ Succeeded	8 seconds	build-image-index
✅ Succeeded	44 seconds	clamav-scan
✅ Succeeded	48 seconds	clair-scan
✅ Succeeded	20 seconds	sast-snyk-check
✅ Succeeded	16 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	14 seconds	deprecated-base-image-check
✅ Succeeded	10 seconds	apply-tags
✅ Succeeded	18 seconds	push-dockerfile
✅ Succeeded	6 seconds	show-sbom
✅ Succeeded	11 seconds	show-summary