updated copyright headers required

[hzierer]

Unfortunately all(?) of your copyright headers have to be updated.
The current ones are still stating

Since you have moved to Tractus-X project this is no longer valid. Please replace it by "Tractus-X" or remove the whole line.

[matbmoser]

Solved in the release https://github.com/eclipse-tractusx/digital-product-pass/releases/tag/v2.1.3

[matbmoser]

Was also good we found some un updated license header years in the notices for documentation :)