chore(deps): update datafusion to 52.4.0 [iceberg]

[andygrove]

Update the DataFusion dependency from 52.3.0 to 52.4.0. No API changes were required.

[mbutrovich]

LGTM, thanks @andygrove!

[mbutrovich]

Added [iceberg] to the title and merged in latest main to kick off CI again. We should probably get in the habit (as long as we don't have them running by default) to tag [iceberg] on any DataFusion bumps. I'm not as concerned about a minor version, but still.

[mbutrovich]

Looks like we need new iceberg-rust diffs after #3739. CometIcebergNativeScan does not need Iceberg Java changes, but I think the diffs were still based on the Iceberg Java integration to reduce the differences. We could either 1) generate new diffs that only have the test changes we need to test that codepath 2) peel back the changes for Iceberg Java integration from the existing diffs to get it compiling again.

At this point option 1 might be less work.

[comphead]

Thanks @andygrove pending CI