python package was out of date in the dockerfile

Enhance Dockerfile and Streamlit app configuration by adding user management and environment variable handling for MongoDB connection. Introduce secrets management for sensitive data and update requirements installation process. New secrets.toml file created for storing MongoDB URI.

Enhance Streamlit app with MongoDB integration and player frequency analysis. Added secret management for MongoDB URI in Dockerfile, updated requirements to include pymongo, and refactored streamlit_app.py to connect to MongoDB and display player statistics. Implemented data export functionality for player frequency and optimal lineups.

Duplicate from streamlit/streamlit-template-space