Upgrade python-scraperlib to 3.x, including CLI support for description / long_description flags

[benoit74]

Python scrapers must be updated to use python-scraperlib 3.x

At the same time, they must:

• add (if not already present) CLI parameters to set description + long_description
• use the shared logic of https://github.com/openzim/python-scraperlib/issues/110 to handle these fields

For every scraper, do not forget to also update Zimfarm configuration to add these new CLI parameters + set type (input or textarea) + maximum length.

This is an overview ticket, works has to be done in the individual scrapers:

• [ ] https://github.com/openzim/kolibri/issues/50 (upgrade to 3.x already done)
• [ ] https://github.com/openzim/nautilus/issues/64 (upgrade to 3.x already done)
• [ ] https://github.com/openzim/openedx/issues/181
• [ ] https://github.com/openzim/gutenberg/issues/188
• [x] https://github.com/openzim/ted/issues/148
• [x] https://github.com/openzim/sotoki/issues/290
• [x] https://github.com/openzim/freecodecamp/issues/13
• [x] https://github.com/openzim/zimit/issues/202
• [x] https://github.com/openzim/ifixit/issues/92
• [x] https://github.com/openzim/youtube/issues/175
• [ ] https://github.com/openzim/wikihow/issues/149