Update all references from the old personal repo URL
(github.com/joaomdmoura/crewai-tools) to the current monorepo location
(github.com/crewAIInc/crewAI/tree/main/lib/crewai-tools) across all
language versions (en, ko, ar, pt-BR) of the docs.
Add regression test to prevent future link rot.
Fixes#5253
Co-Authored-By: João <joao@crewai.com>