Update Dockerfile.buildkit (#1542)

corrected model download directory

Signed-off-by: Thomas <tvhdev@vonhaugwitz-softwaresolutions.de>

gpt4all-api/gpt4all_api/Dockerfile.buildkit

@@ -18,6 +18,6 @@ COPY gpt4all_api/app /app
 RUN mkdir -p /models
 
 # Include the following line to bake a model into the image and not have to download it on API start.
-RUN wget -q --show-progress=off https://gpt4all.io/models/gguf/${MODEL_BIN} -P /models \
+RUN wget -q --show-progress=off https://gpt4all.io/models/${MODEL_BIN} -P /models \
   && md5sum /models/${MODEL_BIN}