tests

Add `ColumnDef::get_column_default` getter (#2387) #4446

Job	Run time
Clippy	1m 11s
Init	4s
Examples (examples/actix_example)	2m 28s
Rustfmt	19s
Unit Test	3m 10s
Examples (examples/axum_example)	2m 22s
Examples (examples/basic)	1m 8s
Examples (examples/graphql_example)	2m 48s
Examples (examples/jsonrpsee_example)	2m 42s
Examples (examples/poem_example)	2m 14s
Examples (examples/proxy_gluesql_example)	1m 41s
Examples (examples/rocket_example)	3m 8s
Examples (examples/rocket_okapi_example)	3m 11s
Examples (examples/salvo_example)	2m 48s
Examples (examples/seaography_example)	2m 38s
Examples (examples/tonic_example)	2m 28s
Compile MySQL (actix, native-tls)	2m 55s
Compile SQLite (async-std, native-tls)	2m 49s
CLI	0s
Compile MySQL (actix, rustls)	2m 59s
Compile PostgreSQL (tokio, native-tls)	3m 7s
Compile SQLite (async-std, rustls)	3m 1s
Compile PostgreSQL (tokio, rustls)	3m 15s
Issues Matrix	0s
Issues	0s
MySQL (lts, actix, native-tls)	3m 32s
MariaDB (lts, actix, native-tls)	2m 26s
MySQL (5.7, actix, native-tls)	3m 37s
SQLite (async-std, native-tls)	4m 24s
SQLite (async-std, rustls)	4m 31s
Postgres (14, tokio, native-tls)	7m 3s
Postgres (16, tokio, native-tls)	7m 1s
	1h 25m 0s

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