tests

Bump SQLx to 0.8 #2166

Job	Run time
Build `sea-query`	45s
Build `sea-query-rusqlite`	42s
Clippy	53s
Rustfmt	16s
Build `sea-query-postgres`	1m 44s
Build `sea-query-binder` (async-std, rustls)	1m 50s
Derive Tests	37s
Unit Test	1m 38s
MySQL (8, sqlx_mysql)	1m 15s
MariaDB (10.6, sqlx_mysql)	1m 11s
MySQL (5.7, sqlx_mysql)	1m 41s
PostgreSQL (14.4, postgres)	42s
Any	1m 42s
PostgreSQL (14.4, sqlx_postgres)	1m 25s
PostgreSQL (13.7, postgres)	1m 7s
SQLite (rusqlite)	16s
PostgreSQL (13.7, sqlx_postgres)	1m 20s
SQLite (sqlx_sqlite)	54s
PostgreSQL (12.11, postgres)	56s
PostgreSQL (12.11, sqlx_postgres)	1m 22s
	22m 16s

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