Add version to lb-mc cli output

From the CI log on the mc-requests pipelines it is not clear which version is used. Here an example for reference:

This small change here would fix this.

Example output:

Version: 2025.12.10.2.dev1+gb9e20440a
Loading 2024-02-12_sim09_prio_stage0.yaml
Running checks
Generated 4 production requests
    containing 12 subrequests
    and 3,750,000 events