[substrait] [sqllogictest] Unsupported cast type: Time64 #16275
Description
Describe the bug
~70 sqllogictest cases are failing in Substrait round-trip mode because of the following error:
query failed: DataFusion error: This feature is not implemented: Unsupported cast type: Time64(Nanosecond)```
### To Reproduce
cargo test --test sqllogictests -- --substrait-round-trip date_part.slt:493
### Expected behavior
The sqllogictest passes in Substrait round-trip mode
### Additional context
This is part of a broader initiative to improve the reliability of Substrait-to-DataFusion logical plan conversions.
- https://github.com/apache/datafusion/issues/16248