chore: adjust license and add banner (#1951)

## Summary

- Remove SAP copyright line from the Licensing section (consistent with
other org repos)
- Add EU/BMWK funding banner at the bottom of the README

## Related Issue

Related to
open-component-model/ocm-project#981

Signed-off-by: Frederic Wilhelm <frederic.wilhelm@sap.com>

Author: frewilhelm

README.md

@@ -183,6 +183,9 @@ Please refer to the [Release Process Documentation](RELEASE_PROCESS.md) for more
 
 ## Licensing
 
-Copyright 2025 SAP SE or an SAP affiliate company and Open Component Model contributors.
 Please see our [LICENSE](LICENSE) for copyright and license information.
 Detailed information including third-party components and their licensing/copyright information is available [via the REUSE tool](https://api.reuse.software/info/github.com/open-component-model/ocm).
+
+---
+
+<p align="center"><img alt="Bundesministerium für Wirtschaft und Energie (BMWE)-EU funding logo" src="https://apeirora.eu/assets/img/BMWK-EU.png" width="400"/></p>