Support Java 25

### Feature Request / Improvement

Hello Iceberg maintainers,

We are planning to use Java 25 together with Apache Spark 4.2 and Apache Iceberg.
We are currently on latest iceberg release(1.11.0) .

We noticed that the Apache Spark community is actively tracking Java 25 support:
https://issues.apache.org/jira/browse/SPARK-51167

Is the Iceberg community planning to officially support Java 25? If not, would you consider tracking it as an enhancement for a future release?

Regards

### Query engine

Trino

### Willingness to contribute

- [ ] I can contribute this improvement/feature independently
- [ ] I would be willing to contribute this improvement/feature with guidance from the Iceberg community
- [ ] I cannot contribute this improvement/feature at this time

Start with the Java 25 compatibility question and the linked Spark tracking issue, SPARK-51167; compare the stated Iceberg 1.11.0 and Spark 4.2 context with the project's current support position. Done means a defined Java 25 support scope and agreed validation or release criteria.

Written by the indexing model from the issue text.