refactor: Introduce build aggregator #313

Job	Run time
Detect relevant changed files	7s
Run cargo-udeps	2m 44s
Build/Publish amd64 Image	8m 53s
Build/Publish arm64 Image	7m 37s
Package/Publish 0.0.0-pr852 Helm Chart	37s
Publish/Sign 0.0.0-pr852 Index	40s
Run OpenShift Preflight Check for 0.0.0-pr852-amd64	31s
Run OpenShift Preflight Check for 0.0.0-pr852-arm64	40s
Generate Provenance for 0.0.0-pr852 (quay.io) / detect-env	5s
Generate Provenance for 0.0.0-pr852 (oci.stackable.tech) / detect-env	4s
Generate Provenance for 0.0.0-pr852 (oci.stackable.tech) / generator	38s
Generate Provenance for 0.0.0-pr852 (quay.io) / generator	29s
Generate Provenance for 0.0.0-pr852 (quay.io) / final	3s
Finished Build and Publish	2s
Generate Provenance for 0.0.0-pr852 (oci.stackable.tech) / final	3s
Failure Notification	0s
	23m 13s

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