refactor: Introduce build aggregator #275

Job	Run time
Detect relevant changed files	5s
Run cargo-udeps	1m 56s
Build/Publish arm64 Image	7m 1s
Build/Publish amd64 Image	7m 39s
Package/Publish 0.0.0-pr1053 Helm Chart	52s
Publish/Sign 0.0.0-pr1053 Index	1m 0s
Run OpenShift Preflight Check for 0.0.0-pr1053-arm64	29s
Generate Provenance for 0.0.0-pr1053 (quay.io) / detect-env	7s
Run OpenShift Preflight Check for 0.0.0-pr1053-amd64	30s
Generate Provenance for 0.0.0-pr1053 (oci.stackable.tech) / detect-env	7s
Generate Provenance for 0.0.0-pr1053 (oci.stackable.tech) / generator	27s
Generate Provenance for 0.0.0-pr1053 (quay.io) / generator	22s
Finished Build and Publish	4s
Generate Provenance for 0.0.0-pr1053 (quay.io) / final	2s
Generate Provenance for 0.0.0-pr1053 (oci.stackable.tech) / final	3s
Failure Notification	-1s
	20m 43s

Provide feedback