MGMT-19420: Replace HighAvailabilityMode with ControlPlaneCount #911

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Status	Duration	Name
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✅ Succeeded	15 seconds	clone-repository
✅ Succeeded	1 minute	prefetch-dependencies
✅ Succeeded	2 minutes	build-images
✅ Succeeded	13 seconds	build-image-index
✅ Succeeded	8 seconds	deprecated-base-image-check
✅ Succeeded	7 seconds	apply-tags
✅ Succeeded	31 seconds	build-source-image
✅ Succeeded	33 seconds	clair-scan
✅ Succeeded	1 minute	clamav-scan
✅ Succeeded	25 seconds	rpms-signature-scan
✅ Succeeded	8 seconds	push-dockerfile
✅ Succeeded	38 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	1 minute	sast-snyk-check
✅ Succeeded	6 seconds	show-sbom