Release 2.18.0

Dependency Updates

All dependencies were updated.

Most noticeable:

• Spring Boot to 3.4.1
• Kotlin to 2.0.10

Form Data Optimization

The multi-form-data upload uses now Resource as basis instead of ByteArray.
This matches better to the needs of RestTemplate and the MultipartFile on server-side.

The sentence Given that the file "<filename>" is stored as "<context>" stores now the file in the ScenarioContext file map, but also the name of the file in the regular map under the same key.
This is required, because the filename is required for multi-form-data uploads.