make download: Download the incomplete local model file

[yinmin2020]

Describe the bug
When I started the semantic-router service, an error occurred saying that sentence-transformers/all-MiniLM-L12-v2 was missing. Actually, I have already finished making download-models. After the "make download" is completed, the model files in models indeed do not report the model files that were required to be initialized.
To Reproduce
Steps to reproduce the behavior:
1.make download
2.docker compose up -d

Expected behavior

Screenshots
make download should fully download all the model files necessary for starting the container and should not be missing them

Additional context
Add any other context about the problem here.

[Xunzhuo]

/area environment user-experience

[Xunzhuo]

Thanks @yinmin2020 !