[Feature Request][Spark] Update UniForm related comment to include description to Hudi

Feature request

Which Delta project/connector is this regarding?

• Spark
• Standalone
• Flink
• Kernel
• Other (fill in here)

Overview

UniForm now supports both Hudi and Iceberg. But the comment in UniversalFormat.scala is outdated, only mentioning support to Iceberg. These comment in UniversalFormat.scala should be updated to describe the UniForm support to Hudi.

Example comments from the file:

Currently, UniForm only supports Iceberg. When `delta.universalFormat.enabledFormats` contains"iceberg", we say that Universal Format (Iceberg) is enabled.

Link

Motivation

Further details

Willingness to contribute

The Delta Lake Community encourages new feature contributions. Would you or another member of your organization be willing to contribute an implementation of this feature?

• Yes. I can contribute this feature independently.
• Yes. I would be willing to contribute this feature with guidance from the Delta Lake community.
• No. I cannot contribute this feature at this time.