Updates headers of semantic cost yaml files

[dreMoment]

Description

Tiny refactor to change Licencing Headers to the new version format defined in this repo.

Type of change

• New feature (non-breaking change which adds functionality)

Screenshots

Please attach before and after screenshots of the change if applicable.

Checklist

• I have run the pre-commit checks with ./formatter.sh
• I have made corresponding changes to the documentation (will come shortly)
• My changes generate no new warnings
• I have updated the changelog and the corresponding version in the extension's config/extension.toml file
• I have added my name to the CONTRIBUTORS.md or my name already exists there

[pascal-roth]

good catch, thanks