Update Dockerfile

Updating base image and uninstalling old version of websockets libraries.

Dockerfile

@@ -1,5 +1,5 @@
 # Use an official Python runtime as the base image
-FROM python:3.8-slim
+FROM python:3.11-slim
 
 # Set the working directory in the container
 WORKDIR /app
@@ -8,7 +8,7 @@ WORKDIR /app
 COPY ./app /app
 
 # Install any needed packages specified in requirements.txt
-RUN pip install --trusted-host pypi.python.org -r requirements.txt
+RUN pip uninstall websocket websocket-client && pip install --trusted-host pypi.python.org -r requirements.txt
 
 # Make port 80 available to the world outside this container
 EXPOSE 5000