tests

refactor: remove unnecessary string hashes #2237

Job	Run time
Build `sea-query-postgres`	34s
Build `sea-query`	45s
Build `sea-query-binder` (async-std, rustls)	1m 54s
Clippy	57s
Build `sea-query-rusqlite`	30s
Rustfmt	16s
Derive Tests	42s
Unit Test	2m 32s
MariaDB (10.6, sqlx_mysql)	1m 6s
Any	1m 2s
MySQL (8, sqlx_mysql)	1m 16s
PostgreSQL (14.4, postgres)	51s
MySQL (5.7, sqlx_mysql)	1m 12s
SQLite (rusqlite)	18s
PostgreSQL (14.4, sqlx_postgres)	1m 15s
SQLite (sqlx_sqlite)	47s
PostgreSQL (13.7, postgres)	50s
PostgreSQL (13.7, sqlx_postgres)	1m 11s
PostgreSQL (12.11, postgres)	1m 0s
PostgreSQL (12.11, sqlx_postgres)	1m 13s
	20m 11s

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