SQLx

Fix ODBC prepare metadata caching #479

Job	Run time
Format	5s
Unit Test windows-2025-vs2026	3m 9s
CLI Binaries (windows-2025-vs2026)	4m 32s
CLI Binaries (ubuntu-latest)	2m 47s
Check (async-std, native-tls)	48s
Unit Test ubuntu-latest	1m 40s
Check (async-std, rustls)	59s
Check (tokio, native-tls)	47s
Check (tokio, rustls)	51s
Postgres	0s
ODBC (PostgreSQL and SQLite)	0s
MariaDB	-1s
MySQL	-1s
SQLite	-1s
Postgres with SSL client cert	-1s
MSSQL	-1s
	15m 33s

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