Update Dockerfile

Dockerfile

@@ -1,15 +1,15 @@
 # Use Python as the base image
 FROM python:3.9-slim
 
-# Install necessary Python dependencies
-RUN pip install --no-cache-dir -r requirements.txt
-
 # Copy the app code into the container
 COPY . /app
 
 # Set the working directory to /app
 WORKDIR /app
 
+# Install necessary Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
 # Expose port 5000 for the Flask app
 EXPOSE 5000