[French] Sync VTTs and tables for eval videos

[remibetin]

Peer contribution: remibetin & Sylvie42

PRs opened:

• https://github.com/w3c/wai-eval-tools-overview/pull/11
• https://github.com/w3c/wai-InvolveUsersEval/pull/24
• https://github.com/w3c/wai-conformance-eval-overview/pull/11

[remibetin]

The synced VTTs and tables are live 🎉 :

• https://www.w3.org/WAI/test-evaluate/tools/fr
• https://www.w3.org/WAI/test-evaluate/involving-users/fr
• https://www.w3.org/WAI/test-evaluate/conformance/fr

Thanks @Sylvie42 for your help!