tests

Bump SQLx to 0.8 (#798) #2172

Job	Run time
Build `sea-query`	49s
Build `sea-query-binder` (async-std, rustls)	1m 56s
Clippy	1m 2s
Build `sea-query-postgres`	41s
Build `sea-query-rusqlite`	39s
Rustfmt	18s
Derive Tests	44s
Unit Test	1m 43s
PostgreSQL (14.4, postgres)	54s
PostgreSQL (14.4, sqlx_postgres)	1m 14s
Any	1m 20s
PostgreSQL (13.7, postgres)	54s
MariaDB (10.6, sqlx_mysql)	1m 16s
PostgreSQL (13.7, sqlx_postgres)	1m 17s
MySQL (8, sqlx_mysql)	1m 22s
SQLite (rusqlite)	21s
PostgreSQL (12.11, postgres)	52s
SQLite (sqlx_sqlite)	50s
MySQL (5.7, sqlx_mysql)	1m 19s
PostgreSQL (12.11, sqlx_postgres)	1m 16s
	20m 47s

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