fix(docs): broken link in the Cedarling Logs


The [Cedarling Logs](https://docs.jans.io/nightly/cedarling/cedarling-logs/#jans-lock-server) has following broken links that throw 404.


### Broken links on the page above

Look for the links below in the code.

Link 1: 

Broken link:  `[Janssen Lock Server](../janssen-server/lock/)`

Proposed fix:  `[Janssen Lock Server](../janssen-server/lock/lock-server.md)`
