MGMT-19100: Allow install to the existing root filesystem #7197

Namespace: <a href="https://detailurl.setting.custom-console-url-namespace.is.not.configured" rel="nofollow">assisted-installer-tenant
PipelineRun: <a href="https://console.redhat.com/application-pipeline/ns/assisted-installer-tenant/pipelinerun/assisted-service-saas-main-on-pull-request-lpr2w" rel="nofollow">assisted-service-saas-main-on-pull-request-lpr2w

Success

Red Hat Konflux/assisted-service-saas-main-on-pull-request has successfully validated your commit.

Status	Duration	Name
✅ Succeeded	7 seconds	init
✅ Succeeded	25 seconds	clone-repository
✅ Succeeded	1 minute	sast-snyk-check
✅ Succeeded	8 minutes	build-container
✅ Succeeded	19 seconds	rpms-signature-scan
✅ Succeeded	2 minutes	clamav-scan
✅ Succeeded	51 seconds	clair-scan
✅ Succeeded	51 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	15 seconds	deprecated-base-image-check
✅ Succeeded	7 seconds	apply-tags
✅ Succeeded	13 seconds	show-summary
✅ Succeeded	11 seconds	show-sbom