Update registry.access.redhat.com/ubi8/openjdk-21 Docker digest to 3f712e2 #20

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Status	Duration	Name
✅ Succeeded	12 seconds	init
✅ Succeeded	10 seconds	clone-repository
✅ Succeeded	38 seconds	prefetch-dependencies
✅ Succeeded	1 minute	build-container
✅ Succeeded	10 seconds	build-image-index
✅ Succeeded	14 seconds	deprecated-base-image-check
✅ Succeeded	9 seconds	sast-unicode-check
✅ Succeeded	24 seconds	sast-snyk-check
✅ Succeeded	10 seconds	push-dockerfile
✅ Succeeded	2 minutes	clamav-scan
✅ Succeeded	21 seconds	sast-shell-check
✅ Succeeded	32 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	1 minute	clair-scan
✅ Succeeded	12 seconds	apply-tags
✅ Succeeded	23 seconds	rpms-signature-scan
✅ Succeeded	9 seconds	coverity-availability-check
✅ Succeeded	12 seconds	show-sbom