[SPARK-49112][CONNECT][TEST] Make createLocalRelationProto support TimestampType

### What changes were proposed in this pull request?
Make `createLocalRelationProto` support relation with `TimestampType`

### Why are the changes needed?
existing helper function `createLocalRelationProto` cannot create table with `TimestampType`:

```
  org.apache.spark.SparkException: [INTERNAL_ERROR] Missing timezoneId where it is mandatory. SQLSTATE: XX000
  at org.apache.spark.SparkException$.internalError(SparkException.scala:99)
  at org.apache.spark.SparkException$.internalError(SparkException.scala:103)
  at org.apache.spark.sql.util.ArrowUtils$.toArrowType(ArrowUtils.scala:57)
  at org.apache.spark.sql.util.ArrowUtils$.toArrowField(ArrowUtils.scala:139)
  at org.apache.spark.sql.util.ArrowUtils$.$anonfun$toArrowSchema$1(ArrowUtils.scala:181)
  at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:286)
  at scala.collection.Iterator.foreach(Iterator.scala:943)
  at scala.collection.Iterator.foreach$(Iterator.scala:943)
  at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
  at scala.collection.IterableLike.foreach(IterableLike.scala:74)
```

### Does this PR introduce _any_ user-facing change?
No, test-only

### How was this patch tested?
added ut

### Was this patch authored or co-authored using generative AI tooling?
no

Closes #47608 from zhengruifeng/create_timestamp_localrel.

Authored-by: Ruifeng Zheng <ruifengz@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>

Author: zhengruifeng

sql/connect/server/src/test/scala/org/apache/spark/sql/connect/planner/SparkConnectPlannerSuite.scala

@@ -87,7 +87,8 @@ trait SparkConnectPlanTest extends SharedSparkSession {
    */
   def createLocalRelationProto(
       attrs: Seq[AttributeReference],
-      data: Seq[InternalRow]): proto.Relation = {
+      data: Seq[InternalRow],
+      timeZoneId: String = "UTC"): proto.Relation = {
     val localRelationBuilder = proto.LocalRelation.newBuilder()
 
     val bytes = ArrowConverters
@@ -96,7 +97,7 @@ trait SparkConnectPlanTest extends SharedSparkSession {
         DataTypeUtils.fromAttributes(attrs.map(_.toAttribute)),
         Long.MaxValue,
         Long.MaxValue,
-        null,
+        timeZoneId,
         true)
       .next()
 

sql/connect/server/src/test/scala/org/apache/spark/sql/connect/planner/SparkConnectProtoSuite.scala

@@ -42,7 +42,7 @@ import org.apache.spark.sql.connector.catalog.{Identifier, InMemoryTableCatalog,
 import org.apache.spark.sql.connector.catalog.CatalogV2Implicits.CatalogHelper
 import org.apache.spark.sql.execution.arrow.ArrowConverters
 import org.apache.spark.sql.functions._
-import org.apache.spark.sql.types.{ArrayType, BooleanType, ByteType, DataType, DateType, DecimalType, DoubleType, FloatType, IntegerType, LongType, MapType, Metadata, ShortType, StringType, StructField, StructType}
+import org.apache.spark.sql.types._
 import org.apache.spark.unsafe.types.UTF8String
 import org.apache.spark.util.Utils
 
@@ -64,6 +64,11 @@ class SparkConnectProtoSuite extends PlanTest with SparkConnectPlanTest {
       Seq(AttributeReference("id", IntegerType)(), AttributeReference("name", StringType)()),
       Seq.empty)
 
+  lazy val connectTestRelation3 =
+    createLocalRelationProto(
+      Seq(AttributeReference("id", IntegerType)(), AttributeReference("date", TimestampType)()),
+      Seq.empty)
+
   lazy val connectTestRelationMap =
     createLocalRelationProto(
       Seq(AttributeReference("id", MapType(StringType, StringType))()),
@@ -79,6 +84,11 @@ class SparkConnectProtoSuite extends PlanTest with SparkConnectPlanTest {
       new java.util.ArrayList[Row](),
       StructType(Seq(StructField("id", IntegerType), StructField("name", StringType))))
 
+  lazy val sparkTestRelation3: DataFrame =
+    spark.createDataFrame(
+      new java.util.ArrayList[Row](),
+      StructType(Seq(StructField("id", IntegerType), StructField("date", TimestampType))))
+
   lazy val sparkTestRelationMap: DataFrame =
     spark.createDataFrame(
       new java.util.ArrayList[Row](),
@@ -93,6 +103,12 @@ class SparkConnectProtoSuite extends PlanTest with SparkConnectPlanTest {
     comparePlans(connectPlan, sparkPlan)
   }
 
+  test("Basic select timestamp") {
+    val connectPlan = connectTestRelation3.select("date".protoAttr)
+    val sparkPlan = sparkTestRelation3.select("date")
+    comparePlans(connectPlan, sparkPlan)
+  }
+
   test("Test select expression in strings") {
     val connectPlan = connectTestRelation.selectExpr("abs(id)", "name")
     val sparkPlan = sparkTestRelation.selectExpr("abs(id)", "name")