chore: edited license headers

[eschrewe]

Description

• changed license header copyright year, where necessary
• solves Update of license headers #528

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
• If helm chart has been changed, the chart version has been bumped to either next major, minor or patch level (compared to released chart).

[eschrewe]

Won't do chart version bumb here...

[tom-rm-meyer-ISST]

Thanks a lot! Found 4 places where 2023 has been placed instead of 2024.

Added suggestion so that you can also add them to a commit as a batch, via files tab :)

Also did some cross-checks with following regex (\(c\) [0-9]{4}) for find all (ctrl + shift + f) in the directory of repository and found more files. Please check

[tom-rm-meyer-ISST]

LGTM, thanks for raising!