[Bug] Examples config path

[DariusIMP]

Describe the bug

After PR #58 we can provide a configuration file to the examples. However, relative paths to the file are relative to the build.gradle.kts, and not relative to the pwd from which the example task is executed.

To reproduce

1. Build the examples
2. Run

gradle ZPub --args="-c config.json5"

from a different directory to the one of the examples located under /zenoh-kotlin/examples, having config.json5 file in the same directory you are standing on (pwd).

The example will fail to load the configuration file. It will require in that case a full path to the config file.

System info

Happens on all platforms.