SQLx

Refactor odbc driver to use spawn_blocking #378

Job	Run time
Unit Test	2m 7s
Format	7s
Check (async-std, rustls)	1m 6s
Check (tokio, rustls)	1m 23s
Check (tokio, native-tls)	1m 0s
Check (async-std, native-tls)	54s
CLI Binaries (windows-latest)	1m 44s
CLI Binaries (ubuntu-latest)	1m 30s
ODBC (PostgreSQL and SQLite)	0s
Postgres with SSL client cert	0s
MySQL	0s
SQLite	0s
MariaDB	0s
Postgres	0s
MSSQL	0s
	9m 51s

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