Fix `Prefetching references` docs #2948

Job	Run time
setup / Get and cache Dart dependencies	31s
setup / Compile sqlite3 for tests (ubuntu-latest)	6s
setup / Compile sqlite3 for tests (macos-latest)	10s
setup / Compile sqlite3 for tests (windows-latest)	13s
drift package	2m 17s
drift_dev	6m 13s
Documentation	4m 20s
Integration tests for migration tooling	1m 13s
Integration tests	2m 54s
sqlparser	45s
test_flutter (3.24)	2m 2s
drift_web_ddc	3m 34s
Drift web unit tests, dart2wasm, chrome	3m 32s
Web integration tests	3m 54s
Drift web unit tests, dart2wasm, firefox	3m 55s
	35m 39s

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