[SPARK-32214][SQL] The type conversion function generated in makeFromJava for "other" type uses a wrong variable

### What changes were proposed in this pull request?

This PR fixes an inconsistency in `EvaluatePython.makeFromJava`, which creates a type conversion function for some Java/Scala types.

`other` is a type but it should actually pass `obj`:

```scala
case other => (obj: Any) => nullSafeConvert(other)(PartialFunction.empty)
```

This does not change the output because it always returns `null` for unsupported datatypes.

### Why are the changes needed?

To make the codes coherent, and consistent.

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

No behaviour change.

Closes #29029 from sarutak/fix-makeFromJava.

Authored-by: Kousuke Saruta <sarutak@oss.nttdata.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>

Author: sarutak

sql/core/src/main/scala/org/apache/spark/sql/execution/python/EvaluatePython.scala

@@ -198,7 +198,7 @@ object EvaluatePython {
 
     case udt: UserDefinedType[_] => makeFromJava(udt.sqlType)
 
-    case other => (obj: Any) => nullSafeConvert(other)(PartialFunction.empty)
+    case other => (obj: Any) => nullSafeConvert(obj)(PartialFunction.empty)
   }
 
   private def nullSafeConvert(input: Any)(f: PartialFunction[Any, Any]): Any = {