Pin the versions of the files we're using and allow offline use (#27)

Without a specific commit, huggingface cannot be sure that the file has
not changed, so it needs to do a quick query to hf hub to check that
there were no new commits. This adds some latency to the CLI and
function calls, but it also prevents offline use, even if the files are
already present locally. This PRs fixes this. Now with the commit hash,
hf has the guarantee that the local files are the right ones and thus
doesn't need to query the hub every time.

Fix https://github.com/kyutai-labs/pocket-tts/pull/21

pocket_tts/utils/utils.py

@@ -14,7 +14,7 @@ PROJECT_ROOT = Path(__file__).parent.parent.parent
 _voices_names = ["alba", "marius", "javert", "jean", "fantine", "cosette", "eponine", "azelma"]
 PREDEFINED_VOICES = {
     # don't forget to change this
-    x: f"hf://kyutai/pocket-tts-without-voice-cloning/embeddings/{x}.safetensors"
+    x: f"hf://kyutai/pocket-tts-without-voice-cloning/embeddings/{x}.safetensors@d4fdd22ae8c8e1cb3634e150ebeff1dab2d16df3"
     for x in _voices_names
 }