Implement ACP-118 Aggregator #9893

Job	Run time
e2e_pre_etna	1m 46s
Unit (macos-14)	4m 2s
Unit (ubuntu-20.04)	3m 33s
Unit (ubuntu-22.04)	7m 6s
Unit (ubuntu-24.04)	3m 20s
Protobuf Lint	6s
Unit (windows-2022)	9m 42s
e2e_existing_network	1m 44s
e2e_post_etna	1m 33s
Unit (custom-arm64-jammy)	7m 18s
Unit (custom-arm64-noble)	6m 53s
Fuzz	14m 55s
Lint	3m 11s
Upgrade	1m 34s
Up-to-date protobuf	24s
Up-to-date mocks	2m 0s
Run bootstrap monitor e2e tests	2m 32s
Up-to-date go.mod and go.sum	15s
Build Antithesis avalanchego images	1m 42s
Build Antithesis xsvm images	1m 38s
Image build	2m 5s
	1h 17m 19s

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