Add commodore version command

[simu]

This command prints extended Commodore version information including the Kapitan, gojsonnet and reclass-rs versions, and the path and version of the required external tools helm, jb and kustomize.

Example output

$ poetry run commodore version 
Commodore 1.27.8.post19 (Git version: v1.27.8-19-ge4aaccc)

Core dependency versions
kapitan: 0.34.6
gojsonnet: 0.21.0, build info: Go compiler: go1.23.7
reclass-rs: 0.9.0, build info: Rust compiler: rustc 1.88.0 (6b00bc388 2025-06-23)

External tool versions
helm: /usr/sbin/helm, version: v3.18.1
jb: /home/simon/.local/bin/jb, version: 0.6.3
kustomize: /home/simon/.local/bin/kustomize, version: v5.6.0

Checklist

• Keep pull requests small so they can be easily reviewed.
• Update the documentation.
• Update tests.
• Categorize the PR by setting a good title and adding one of the labels:
  bug, enhancement, documentation, change, breaking, dependency, internal
  as they show up in the changelog