French character encoding issues

## Description

Reported by client via support https://cds-snc.freshdesk.com/a/tickets/28787

- Problems displaying French characters when extracting GC Forms data using Python.
- Multiple fixes had to be added to the script, along with Bash commands to convert character encoding from Latin-1 to UTF-8.

Start by locating the Python extraction script and the Bash commands used to convert Latin-1 to UTF-8, then reproduce the reported French-character problem with GC Forms data. Done means extracted data displays French characters correctly without multiple manual encoding fixes.

Written by the indexing model from the issue text.