Error:[tyeporm migration] cannot insert multiple commands into a prepared statement

Summary
If I run typeorm migration, i have cannot insert multiple commands into a prepared statement, I dig into typeorm code and find out it use `driver's query `function. and pglite `query` seems not support multiple commands, whilte `exec` function support multiple command.

Example
```
const db = new PGlite()
// typeorm uses query function in migration code.
await db.query(`
CREATE TABLE IF NOT EXISTS test1 (
id SERIAL PRIMARY KEY,
name TEXT
);
CREATE TABLE IF NOT EXISTS test2 (
id SERIAL PRIMARY KEY,
name TEXT
);
`)
})
```