fix(lint): resolve clippy fallout from the tokio 1.53 bump
rolldown 1.2 requires tokio >=1.52.3, which deprecates TcpStream::set_linger.
Allow it in uv_tcp_reset (the abortive SO_LINGER=0 close is intentional) and
mark op_bundle_plugin_start's required-but-awaitless async, both with reasons.
Claude-Session: https://claude.ai/code/session_01QXBexiVeaPBqGPgAxcTLNQ
