update dockerfile

Dockerfile

@@ -1,15 +1,16 @@
 FROM python:3.10.13
 
+RUN useradd -m -u 1000 user
+USER user
+
 # Copy the current directory contents into the container at .
-COPY . .
+COPY --chown=user . .
 
 # Set the working directory to /
 WORKDIR /
 
-ENV token=token
-RUN mkdir ./.cache
-
 # Install requirements.txt 
+RUN pip install --upgrade pip
 RUN pip install -r /requirements.txt
 
 # Start the FastAPI app on port 7860, the default port expected by Spaces