Examples using a config file with mode: "cient" remain in peer mode

[JEnoch]

Describe the bug

Using such a config file:

{ mode: "client" }

All example are not using the client mode, but the peer mode.

To reproduce

1. create a conf.json5 file as such:

   { mode: "client" }

2. Start a Zenoh router: zenohd
3. Start any example with the config file: z_sub -c conf.json5
4. Check the bridge mode as discovered by the bridge at http://localhost:8000/@/router/local (see "whatami" value)

System info

• v0.10.0-rc

[JEnoch]

Simpler way to reproduce:
RUST_LOG=z=debug z_sub -c conf.json5
See in 1st line of log:

[2024-01-30T17:32:12Z DEBUG zenoh::session] Config: Config { id: ab77ffc99d11f93feb6fa200b00e13dd, metadata: Null, mode: Some(Peer), ...