[Task] Update to Java 25

[atextor]

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Java 25, the latest LTS version, was released in 2025-09. Update esmf-sdk (and as far as necessary, esmf-parent, particularly Graal versions) to build on Java 25.

• Update pom.xml
• Update GH Actions
• Update graalvm-library to their latest versions (by updating esmf-parent)
• Fix all occurring build failures (most likely in esmf-native-support)