tests

refactor: remove unnecessary string hashes #2190

Job	Run time
Build `sea-query-binder` (async-std, rustls)	2m 4s
Build `sea-query`	49s
Clippy	1m 2s
Build `sea-query-postgres`	41s
Build `sea-query-rusqlite`	35s
Rustfmt	13s
Derive Tests	41s
Unit Test	2m 23s
MariaDB (10.6, sqlx_mysql)	1m 18s
SQLite (rusqlite)	22s
PostgreSQL (14.4, postgres)	52s
SQLite (sqlx_sqlite)	52s
MySQL (8, sqlx_mysql)	1m 22s
PostgreSQL (14.4, sqlx_postgres)	1m 20s
Any	1m 17s
MySQL (5.7, sqlx_mysql)	1m 20s
PostgreSQL (13.7, postgres)	54s
PostgreSQL (13.7, sqlx_postgres)	1m 18s
PostgreSQL (12.11, postgres)	54s
PostgreSQL (12.11, sqlx_postgres)	1m 15s
	21m 32s

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