cumulus: `ParachainBlockData` support multiple blocks #9029

Job	Run time
preflight / preflight	46s
preflight / ci-versions	1m 5s
test-frame-ui	8m 44s
test-full-crypto-feature	2m 26s
test-node-metrics	8m 38s
cargo-check-all-crate-macos	10m 37s
cargo-check-benches (master)	5m 39s
cargo-check-each-crate (1)	8m 36s
cargo-check-benches (current)	5m 28s
cargo-check-each-crate (2)	8m 26s
cargo-check-each-crate (3)	6m 53s
cargo-check-each-crate (4)	7m 53s
cargo-check-each-crate (5)	7m 16s
cargo-check-each-crate (6)	7m 14s
cargo-check-each-crate (7)	7m 12s
test-frame-examples-compile-to-wasm	2m 55s
node-bench-regression-guard	8s
test-deterministic-wasm	48s
check-tracing	1s
check-metadata-hash	1s
All test misc tests passed	1s
	1h 40m 47s

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