chore: 更新 rust 依赖 (#486)

crates/bili_sync_migration/Cargo.toml

@@ -5,5 +5,4 @@ edition = { workspace = true }
 publish = { workspace = true }
 
 [dependencies]
-async-std = { workspace = true }
 sea-orm-migration = { workspace = true }

crates/bili_sync_migration/src/main.rs

@@ -1,6 +0,0 @@
-use sea_orm_migration::prelude::*;
-
-#[async_std::main]
-async fn main() {
-    cli::run_cli(bili_sync_migration::Migrator).await;
-}