[SPARK-51572] Support binary type in show and collect

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

This PR aims to support `binary` type in `show` and `collect`.

### Why are the changes needed?

Like the other client, binary type values shows in an array style.
```python
$ bin/pyspark --remote sc://localhost:15002
>>> sql("SELECT binary('abc')").show()
+----------+
|       abc|
+----------+
|[61 62 63]|
+----------+
```

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

No.

### How was this patch tested?

Pass the CIs.

### Was this patch authored or co-authored using generative AI tooling?

No.

Closes #26 from dongjoon-hyun/SPARK-51572.

Authored-by: Dongjoon Hyun <[email protected]>
Signed-off-by: Dongjoon Hyun <[email protected]>

Author: dongjoon-hyun

Sources/SparkConnect/DataFrame.swift

@@ -173,6 +173,9 @@ public actor DataFrame: Sendable {
           let str = column.array as! AsString
           if column.data.isNull(i) {
             values.append(nil)
+          } else if column.data.type.info == ArrowType.ArrowBinary {
+            let binary = str.asString(i).utf8.map { String(format: "%02x", $0) }.joined(separator: " ")
+            values.append("[\(binary)]")
           } else {
             values.append(str.asString(i))
           }
@@ -201,6 +204,9 @@ public actor DataFrame: Sendable {
             let str = column.array as! AsString
             if column.data.isNull(i) {
               values.append("NULL")
+            } else if column.data.type.info == ArrowType.ArrowBinary {
+              let binary = str.asString(i).utf8.map { String(format: "%02x", $0) }.joined(separator: " ")
+              values.append("[\(binary)]")
             } else {
               values.append(str.asString(i))
             }

Tests/SparkConnectTests/Resources/queries/binary.sql

@@ -0,0 +1 @@
+SELECT binary('abc')

Tests/SparkConnectTests/Resources/queries/binary.sql.json

@@ -0,0 +1 @@
+[["[61 62 63]"]]