refactor: Introduce build aggregator #293

Job	Run time
Detect relevant changed files	6s
Build/Publish amd64 Image	7m 34s
Build/Publish arm64 Image	6m 31s
Run cargo-udeps	1m 44s
Package/Publish 0.0.0-pr801 Helm Chart	32s
Publish/Sign 0.0.0-pr801 Index	29s
Run OpenShift Preflight Check for ${{ needs.build-container-image.outputs.operator-version }}-${{ matrix.arch }}	0s
Generate Provenance for 0.0.0-pr801 (oci.stackable.tech)	-1s
Generate Provenance for 0.0.0-pr801 (quay.io)	-1s
Failure Notification	6s
Finished Build and Publish	0s
	17m 0s

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