We upgraded ESLint to version 9 in the y-provider server,
which includes several improvements and fixes.
This change also involves updating the ESLint
configuration files to the new format and ensuring
compatibility with the latest ESLint features.
We replace the y-webrtc-signaling app by
the server-y-provider server.
The server-y-provider server uses @hocuspocus to
do collaborative editing on docs.