Patch Version Increase to 6.0.2

[nicoprow]

Description

This pull request includes hotfixes for the BPDM applications:

• Checksum for the BPN will now be correctly calculated from the whole BPN (including the prefix) BPN issuing optimization  sig-release#699
• BPDM Gate now correctly sends missing alternative addresses to the Orchestrator as NULL (This solves incorrect validation errors thrown by the Pool on the alternative address) IF BPDM Sharing company data (Registration process) portal-backend#801

Pre-review checks

Please ensure to do as many of the following checks as possible, before asking for committer review:

• DEPENDENCIES are up-to-date. Dash license tool. Committers can open IP issues for restricted libs.
• Copyright and license header are present on all affected files