fix: Avoid re-building whole image when change py code

[ilozano2]

Issue

Changing just one line of Python code will force you re compile iusing docker compose up --build

For example, changing data-crawler python code and starting up the service

docker compose -f docker-compose.yml up data-crawlers  --build -d

provokes re-building the whole image, which is a lot of time.

Fix

Add .git and other formats into the .dockerignore file