Upgrade code snippets for docs #3129

Job	Run time
setup / Compile sqlite3 for tests (ubuntu-latest)	11s
setup / Get and cache Dart dependencies	34s
setup / Compile sqlite3 for tests (macos-latest)	9s
setup / Compile sqlite3 for tests (windows-latest)	12s
drift_dev	6m 39s
drift package	2m 5s
Integration tests for migration tooling	1m 10s
Documentation	4m 33s
Integration tests	2m 48s
sqlparser	41s
test_flutter (3.24)	2m 11s
test_flutter (3.27)	2m 10s
Drift web unit tests, dart2wasm, chrome	3m 52s
Drift web unit tests, dart2wasm, firefox	4m 30s
drift_web_ddc	5m 11s
Web integration tests	3m 56s
	40m 52s

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