ci: pin old python-magic version for windows
ci: pin old python-magic version for windows

aumayr/beancount-web,aumayr/beancount-web,beancount/fava,beancount/fava,yagebu/fava,aumayr/beancount-web,beancount/fava,yagebu/fava,beancount/fava,yagebu/fava,beancount/fava,yagebu/fava,aumayr/beancount-web,yagebu/fava