Search before asking

• I searched in the issues and found nothing similar.

Motivation

Currently, the configuration files of the observability quickstart guide are packages as a zip file, which is not version control-friendly. The files should be included in the binary distribution of fluss.

Solution

• Include the logback configuration file in conf/.
• Include configuration files of third party applications (e.g., Prometheus) in examples/quickstart-observability/
• Adapt the observability quickstart guide

Anything else?

No response

Willingness to contribute

• I'm willing to submit a PR!