Headless Server did not respond with JSON properties and proper HTTP response code when requesting via a non existing site filter

Headless Server responds now with a real JSON response and the correct content type 'application/json'. As this bugfix changes the behavior, this update is considered potentially breaking. Customers should check their client application whether they rely on the old behavior.

(CMS-18620)

GraphQL Extended Scalars Library updated

The 'graphql-java-extended-scalars' library was updated to version 15.0.0 to be future proof for upcoming updates of graphql-java. Along with this update, the class com.coremedia.caas.schema.CoercingBigDecimal.java became redundant and was deleted.

(CMS-18240)