Remove GitHub Actions from release-1.6 #442

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Red Hat Konflux/multicluster-global-hub-operator-bundle-globalhub-1-6-on-pull-request has successfully validated your commit.

Namespace: acm-multicluster-glo-tenant
PipelineRun: multicluster-global-hub-operator-bundle-globalhub-1-6-on-pclt7x

Status	Duration	Name
🟢 Succeeded	6 seconds	init
🟢 Succeeded	9 seconds	clone-repository
🟢 Succeeded	6 seconds	prefetch-dependencies
🟢 Succeeded	32 seconds	build-container
🟢 Succeeded	4 seconds	build-image-index
🟢 Succeeded	8 seconds	deprecated-base-image-check
🟢 Succeeded	28 seconds	build-source-image
🟢 Succeeded	17 seconds	clair-scan
🟢 Succeeded	7 seconds	coverity-availability-check
🟢 Succeeded	9 seconds	apply-tags
🟢 Succeeded	10 seconds	sast-snyk-check
🟢 Succeeded	25 seconds	clamav-scan
🟢 Succeeded	8 seconds	sast-shell-check
🟢 Succeeded	7 seconds	push-dockerfile
🟢 Succeeded	7 seconds	rpms-signature-scan
🟢 Succeeded	11 seconds	ecosystem-cert-preflight-checks
🟢 Succeeded	8 seconds	sast-unicode-check
🟢 Succeeded	7 seconds	show-sbom