fix: Lemon AI Analytics broken link (#10641)
**Description**
The [current redirect
link](https://github.com/felixbrock/lemonai-analytics) gives 404 error
replace it with the [correct
link](https://github.com/felixbrock/lemon-agent/blob/main/apps/analytics/README.md)
Resource: https://python.langchain.com/docs/integrations/tools/lemonai
