refactor: Introduce build aggregator (#726) #361

Job	Run time
Detect relevant changed files	6s
Build/Publish arm64 Image	5m 38s
Build/Publish amd64 Image	8m 16s
Run cargo-udeps	1m 55s
Package/Publish 0.0.0-dev Helm Chart	33s
Publish/Sign 0.0.0-dev Index	48s
Run OpenShift Preflight Check for 0.0.0-dev-amd64	44s
Run OpenShift Preflight Check for 0.0.0-dev-arm64	28s
Generate Provenance for 0.0.0-dev (oci.stackable.tech) / detect-env	3s
Generate Provenance for 0.0.0-dev (quay.io) / detect-env	6s
Generate Provenance for 0.0.0-dev (oci.stackable.tech) / generator	33s
Generate Provenance for 0.0.0-dev (quay.io) / generator	25s
Generate Provenance for 0.0.0-dev (quay.io) / final	3s
Generate Provenance for 0.0.0-dev (oci.stackable.tech) / final	2s
Finished Build and Publish	4s
Failure Notification	-1s
	19m 43s

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