Use correct setting for click bench queries in sql_planner benchmark (#19835)

## Which issue does this PR close?

- Closes #19809

## Rationale for this change
The ClickBench partitioned dataset was written by an ancient version of
pyarrow that that wrote strings with the wrong logical type. To read it
correctly, we must automatically convert binary to string.

This is the configuration we run the ClickBench benchmark in as well:


https://github.com/apache/datafusion/blob/cd12d510395eabb7ee51cac0a4cc7c7ffd1ac841/benchmarks/src/clickbench.rs#L184-L183

## What changes are included in this PR?

Change the sql planner benchmark to use the correct setting

I tested it manually -- before this change this command fails

```shell
cargo bench --profile=dev --bench sql_planner -- q50
...
thread 'main' (38326073) panicked at datafusion/core/benches/sql_planner.rs:62:14:
called `Result::unwrap()` on an `Err` value: Context("type_coercion", Internal("Expect TypeSignatureClass::Native(LogicalType(Native(String), String)) but received NativeType::Binary, DataType: BinaryView"))
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```


After this change the command passes



## Are these changes tested?

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## Are there any user-facing changes?

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Author: alamb

datafusion/core/benches/sql_planner.rs

@@ -118,6 +118,11 @@ fn register_clickbench_hits_table(rt: &Runtime) -> SessionContext {
 
     let sql = format!("CREATE EXTERNAL TABLE hits STORED AS PARQUET LOCATION '{path}'");
 
+    // ClickBench partitioned dataset was written by an ancient version of pyarrow that
+    // that wrote strings with the wrong logical type. To read it correctly, we must
+    // automatically convert binary to string.
+    rt.block_on(ctx.sql("SET datafusion.execution.parquet.binary_as_string  = true;"))
+        .unwrap();
     rt.block_on(ctx.sql(&sql)).unwrap();
 
     let count =