node: Wire up ChainSection.ingestor to control block ingestion #11416

Job	Run time
Run integration tests	5m 37s
Build in release mode	1m 28s
Run unit tests	3m 42s
Clippy linting	1m 45s
Subgraph Runner integration tests	3m 0s
Check rustfmt style	14s
	15m 46s

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