[RHCLOUD-37053] Simplify email connector internal logic #3227

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PipelineRun: <a href="https://console.redhat.com/application-pipeline/ns/hcc-integrations-tenant/pipelinerun/notifications-connector-webhook-on-pull-request-sc5k2" rel="nofollow">notifications-connector-webhook-on-pull-request-sc5k2

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Status	Duration	Name
✅ Succeeded	11 seconds	init
✅ Succeeded	15 seconds	clone-repository
✅ Succeeded	1 minute	build-container
✅ Succeeded	5 seconds	build-image-index
✅ Succeeded	21 seconds	sast-shell-check
✅ Succeeded	26 seconds	sast-unicode-check
✅ Succeeded	13 seconds	apply-tags
✅ Succeeded	36 seconds	ecosystem-cert-preflight-checks
✅ Succeeded	23 seconds	rpms-signature-scan
✅ Succeeded	18 seconds	sast-snyk-check
✅ Succeeded	16 seconds	coverity-availability-check
✅ Succeeded	16 seconds	push-dockerfile
✅ Succeeded	52 seconds	clair-scan
✅ Succeeded	3 minutes	clamav-scan
✅ Succeeded	11 seconds	deprecated-base-image-check
✅ Succeeded	13 seconds	show-summary
✅ Succeeded	11 seconds	show-sbom