无法通过 `Speech2TextGreedySearch.from_pretrained(...)` 加载 `espnet/powsm_ctc`，因为发布的 `meta.yaml` 无效

Hi, thanks for releasing powsm_ctc.

I’m seeing a reproducible packaging/loading issue with the public espnet/powsm_ctc model that prevents the documented from_pretrained(...) path from working on current upstream ESPnet.