tests

Let `last_insert_id` optional and flexible. #4452

Job	Run time
Clippy	1m 14s
Init	4s
Unit Test	2m 45s
Rustfmt	19s
Examples (examples/actix_example)	2m 30s
Examples (examples/axum_example)	2m 23s
Examples (examples/basic)	1m 6s
Examples (examples/graphql_example)	2m 38s
Examples (examples/jsonrpsee_example)	2m 34s
Examples (examples/poem_example)	2m 22s
Examples (examples/proxy_gluesql_example)	1m 26s
Examples (examples/rocket_example)	2m 44s
Examples (examples/rocket_okapi_example)	2m 44s
Examples (examples/salvo_example)	2m 37s
Examples (examples/seaography_example)	2m 30s
Examples (examples/tonic_example)	2m 36s
Compile PostgreSQL (tokio, native-tls)	2m 17s
Compile SQLite (async-std, native-tls)	1m 30s
Compile MySQL (actix, native-tls)	1m 8s
Compile PostgreSQL (tokio, rustls)	1m 52s
Compile SQLite (async-std, rustls)	1m 38s
CLI	0s
Compile MySQL (actix, rustls)	1m 34s
Issues Matrix	0s
Issues	0s
SQLite	0s
Postgres	0s
MySQL	1s
MariaDB	1s
	42m 33s

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