TENT-5945 feat: Switch from semver to Cadenza version based versioning

[sebastianbarth-disy]

Switching from semver to a Cadenza Version based versioning scheme starting with Cadenza 10.2 (cadenza.js 10.2.0):

• Every Cadenza Version has its own minor version, e.g. 10.2.5 for Cadenza 10.2
• Bugfixes and Functionality changes are both mapped by third-version-segment updates (e.g. 10.2.5 => 10.2.6)
• For minor/patch releases of earlier versions (Cadenza 10.1 and earlier) there is a second "Release Legacy" workflow.

Example image (taken from a personal fork for testing):

[jkissel]

Thank you for implementing this change 👍 Hopefully this will save us some headaches in the future.