message: Fix glue.rs test code to DROP TABLE at first,
  test in glue.rs often fails in GitHub Action.
  add DROP TABLE statement to prevent this
diff: @@ -52,6 +52,10 @@ mod tests {
  let sled = SledStorage::try_from(config).unwrap();
  let mut glue = Glue::new(sled);
  + assert_eq!(
  + glue.execute("DROP TABLE IF EXISTS api_test"),
  + Ok(Payload::DropTable)
  + );
  assert_eq!(
  glue.execute("CREATE TABLE api_test (id INTEGER PRIMARY KEY, name TEXT, nullable TEXT NULL, is BOOLEAN)"),
  Ok(Payload::Create)
  