Add null ordering to manager API #3087

Job	Run time
setup / Compile sqlite3 for tests (ubuntu-latest)	7s
setup / Get and cache Dart dependencies	36s
setup / Compile sqlite3 for tests (macos-latest)	9s
setup / Compile sqlite3 for tests (windows-latest)	13s
drift_dev	7m 2s
drift package	2m 14s
Documentation	4m 56s
Integration tests	2m 53s
test_flutter (3.24)	2m 16s
Integration tests for migration tooling	1m 10s
test_flutter (3.27)	2m 2s
sqlparser	41s
drift_web_ddc	3m 28s
Drift web unit tests, dart2wasm, chrome	3m 48s
Drift web unit tests, dart2wasm, firefox	4m 10s
Web integration tests	4m 5s
	39m 50s

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