refactor: Introduce build aggregator #549

Job	Run time
Detect relevant changed files	8s
Run cargo-udeps	2m 5s
Build/Publish amd64 Image	7m 51s
Build/Publish arm64 Image	6m 45s
Package/Publish 0.0.0-pr814 Helm Chart	42s
Publish/Sign 0.0.0-pr814 Index	32s
Run OpenShift Preflight Check for 0.0.0-pr814-amd64	26s
Run OpenShift Preflight Check for 0.0.0-pr814-arm64	33s
Generate Provenance for 0.0.0-pr814 (quay.io) / detect-env	5s
Generate Provenance for 0.0.0-pr814 (oci.stackable.tech) / detect-env	3s
Generate Provenance for 0.0.0-pr814 (oci.stackable.tech) / generator	27s
Generate Provenance for 0.0.0-pr814 (quay.io) / generator	20s
Generate Provenance for 0.0.0-pr814 (quay.io) / final	4s
Generate Provenance for 0.0.0-pr814 (oci.stackable.tech) / final	2s
Finished Build and Publish	3s
Failure Notification	-1s
	20m 5s

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