Update `Iceberg Java API` doc

[manuzhang]

Feature Request / Improvement

https://iceberg.apache.org/docs/nightly/api/ is not up-to-date. For example, newRowDelta is missing from Update operations and iceberg-hive3 should have been removed from Modules.

Query engine

None

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

[KyleLin0927]

Hi, I can help with this issue.

[manuzhang]

@KyleLin0927 feel free to open a pull request.

[kevinjqliu]

https://iceberg.apache.org/docs/nightly/api/ is not up-to-date

is this an issue with nightly? Based on the name, i'd assume it runs nightly based on the latest main branch

[KyleLin0927]

ok, thanks for others’ contributions.