[SPARK-51976] Add array, map, timestamp, posexplode test queries

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

This PR aims to add `array`, `map`, `timestamp`, `posexplode` test queries and answer files.

### Why are the changes needed?

To have a test coverage.

### 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 #101 from dongjoon-hyun/SPARK-51976.

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

Author: dongjoon-hyun

Tests/SparkConnectTests/Resources/queries/array.sql

@@ -0,0 +1 @@
+SELECT array(1, 2, 3)

Tests/SparkConnectTests/Resources/queries/array.sql.answer

@@ -0,0 +1,5 @@
++--------------+
+|array(1, 2, 3)|
++--------------+
+|     [1, 2, 3]|
++--------------+

Tests/SparkConnectTests/Resources/queries/map.sql

@@ -0,0 +1 @@
+SELECT map(1.0, '2', 3.0, '4')

Tests/SparkConnectTests/Resources/queries/map.sql.answer

@@ -0,0 +1,5 @@
++--------------------+
+| map(1.0, 2, 3.0, 4)|
++--------------------+
+|{1.0 -> 2, 3.0 -> 4}|
++--------------------+

Tests/SparkConnectTests/Resources/queries/posexplode.sql

@@ -0,0 +1 @@
+SELECT posexplode(array(10,20))

Tests/SparkConnectTests/Resources/queries/posexplode.sql.answer

@@ -0,0 +1,6 @@
++---+---+
+|pos|col|
++---+---+
+|  0| 10|
+|  1| 20|
++---+---+

Tests/SparkConnectTests/Resources/queries/timestamp.sql

@@ -0,0 +1 @@
+SELECT TIMESTAMP '2025-05-01 16:23:40.945304'

Tests/SparkConnectTests/Resources/queries/timestamp.sql.answer

@@ -0,0 +1,5 @@
++--------------------------------------+
+|TIMESTAMP '2025-05-01 16:23:40.945304'|
++--------------------------------------+
+|            2025-05-01 16:23:40.945304|
++--------------------------------------+