Add missing metrics to allowlist #1649

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Red Hat Konflux/multicluster-observability-operator-acm-212-on-pull-request has successfully validated your commit.

Namespace: crt-redhat-acm-tenant
PipelineRun: multicluster-observability-operator-acm-212-on-pull-requesfb6ts

Status	Duration	Name
✅ Succeeded	8 seconds	init
✅ Succeeded	19 seconds	clone-repository
✅ Succeeded	4 minutes	build-container
✅ Succeeded	32 seconds	sbom-json-check
✅ Succeeded	44 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	27 seconds	apply-tags
✅ Succeeded	30 seconds	push-dockerfile
✅ Succeeded	11 seconds	deprecated-base-image-check
✅ Succeeded	58 seconds	clamav-scan
✅ Succeeded	23 seconds	clair-scan
✅ Succeeded	39 seconds	sast-snyk-check
✅ Succeeded	16 seconds	show-summary
✅ Succeeded	18 seconds	show-sbom