message: Extend `sled_transaction_timeout_` tests timeout duration,
  Update tx timeout duration to 200ms and sleep duration to 201ms.
  I thought 100ms was quite enough but `cargo tarpaulin` often fails due to this timeout.
diff: @@ -10,7 +10,7 @@ use {
  gluesql::{tests::test_indexes, Value::*, *},
  std::{
  fs,
  - time::{SystemTime, UNIX_EPOCH},
  + time::{Duration, SystemTime, UNIX_EPOCH},
  },
  };
  @@ -403,21 +403,23 @@ async fn sled_transaction_gc() {
  );
  }
  +const TX_TIMEOUT: Option<u128> = Some(200);
  +const TX_SLEEP_TICK: Duration = Duration::from_millis(201);
  +
  #[tokio::test]
  async fn sled_transaction_timeout_store() {
  let path = &format!("{}/transaction_timeout_store", PATH_PREFIX);
  fs::remove_dir_all(path).unwrap_or(());
  let mut storage1 = SledStorage::new(path).unwrap();
  - storage1.set_transaction_timeout(Some(100));
  + storage1.set_transaction_timeout(TX_TIMEOUT);
  let storage2 = storage1.clone();
  let mut glue1 = Glue::new(storage1);
  let mut glue2 = Glue::new(storage2);
  - let tick = std::time::Duration::from_millis(200);
  let sleep = || {
  - std::thread::sleep(tick);
  + std::thread::sleep(TX_SLEEP_TICK);
  };
  exec!(glue1 "BEGIN;");
  @@ -542,15 +544,14 @@ async fn sled_transaction_timeout_alter() {
  fs::remove_dir_all(path).unwrap_or(());
  let mut storage1 = SledStorage::new(path).unwrap();
  - storage1.set_transaction_timeout(Some(100));
  + storage1.set_transaction_timeout(TX_TIMEOUT);
  let storage2 = storage1.clone();
  let mut glue1 = Glue::new(storage1);
  let mut glue2 = Glue::new(storage2);
  - let tick = std::time::Duration::from_millis(200);
  let sleep = || {
  - std::thread::sleep(tick);
  + std::thread::sleep(TX_SLEEP_TICK);
  };
  exec!(glue1 "CREATE TABLE TxAlter (id INTEGER, num INTEGER);");
  @@ -621,15 +622,14 @@ async fn sled_transaction_timeout_index() {
  fs::remove_dir_all(path).unwrap_or(());
  let mut storage1 = SledStorage::new(path).unwrap();
  - storage1.set_transaction_timeout(Some(100));
  + storage1.set_transaction_timeout(TX_TIMEOUT);
  let storage2 = storage1.clone();
  let mut glue1 = Glue::new(storage1);
  let mut glue2 = Glue::new(storage2);
  - let tick = std::time::Duration::from_millis(200);
  let sleep = || {
  - std::thread::sleep(tick);
  + std::thread::sleep(TX_SLEEP_TICK);
  };
  exec!(glue1 "CREATE TABLE TxIndex (id INTEGER);");
  