fix: Reduce cast.rs and utils.rs logic from parquet_support.rs for experimental native scans (apache#1387)

## Which issue does this PR close?

Closes #.

## Rationale for this change

Reduces number of test failures in `native_datafusion` and `native_iceberg_compat` modes:
- native_datafusion: succeeded 651, failed 27, canceled 2, ignored 54, pending 0
- native_iceberg_compat: succeeded 628, failed 50, canceled 2, ignored 54, pending 0

## What changes are included in this PR?

After staring at conversions and hoisting code from arrow-rs to debug, it turns out we can just use arrow's cast in this case.

## How are these changes tested?

Ran `make test-jvm` for `native_datafusion` and `native_iceberg_compat` modes.

Author: mbutrovich

native/Cargo.lock

@@ -76,7 +76,6 @@ datafusion-comet-spark-expr = { workspace = true }
 datafusion-comet-proto = { workspace = true }
 object_store = { workspace = true }
 url = { workspace = true }
-chrono = { workspace = true }
 parking_lot = "0.12.3"
 datafusion-comet-objectstore-hdfs = { path = "../hdfs", optional = true}