tests

Let `last_insert_id` optional and flexible. #4448

Job	Run time
Init	3s
Rustfmt	18s
Clippy	1m 12s
Examples (examples/actix_example)	2m 22s
Unit Test	3m 9s
Examples (examples/axum_example)	2m 23s
Examples (examples/basic)	1m 16s
Examples (examples/graphql_example)	2m 24s
Examples (examples/jsonrpsee_example)	2m 41s
Examples (examples/poem_example)	2m 37s
Examples (examples/proxy_gluesql_example)	59s
Examples (examples/rocket_example)	2m 59s
Examples (examples/rocket_okapi_example)	3m 5s
Examples (examples/salvo_example)	2m 46s
Examples (examples/seaography_example)	2m 24s
Examples (examples/tonic_example)	2m 29s
Compile PostgreSQL (tokio, native-tls)	1m 57s
Compile PostgreSQL (tokio, rustls)	1m 41s
Compile MySQL (actix, native-tls)	1m 23s
CLI	0s
Compile MySQL (actix, rustls)	2m 7s
Compile SQLite (async-std, native-tls)	1m 46s
Compile SQLite (async-std, rustls)	1m 25s
Issues Matrix	0s
Issues	0s
SQLite	0s
Postgres	0s
MariaDB	0s
MySQL	0s
	43m 26s

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