chore: add unused import suppressions in test files

- Included additional imports for Executor and Row in pool.rs and types.rs respectively.
- Suppressed unused import warnings to enhance code clarity.

Author: lovasoa

tests/any/pool.rs

@@ -1,6 +1,8 @@
 #[allow(unused_imports)]
 use sqlx_oldapi::any::{AnyConnectOptions, AnyPoolOptions};
 #[allow(unused_imports)]
+use sqlx_oldapi::Executor;
+#[allow(unused_imports)]
 use std::sync::atomic::AtomicI32;
 use std::sync::{
     atomic::{AtomicUsize, Ordering},

tests/sqlite/types.rs

@@ -4,6 +4,8 @@ extern crate time_ as time;
 #[allow(unused_imports)]
 use sqlx_oldapi::sqlite::{Sqlite, SqliteRow};
 #[allow(unused_imports)]
+use sqlx_oldapi::Row;
+#[allow(unused_imports)]
 use sqlx_test::new;
 use sqlx_test::test_type;