[SPARK-36257][SQL][3.2] Updated the version of TimestampNTZ related changes as 3.3.0

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

As we decided to release TimestampNTZ type in Spark 3.3, we should update the versions of TimestampNTZ related changes as 3.3.0.

### Why are the changes needed?

Correct the versions in documentation/code comment.

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

No

### How was this patch tested?

Existing UT

Closes #33480 from gengliangwang/updateVersion3.2.

Authored-by: Gengliang Wang <gengliang@apache.org>
Signed-off-by: Max Gekk <max.gekk@gmail.com>

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala

@@ -217,7 +217,7 @@ case class Now() extends CurrentTimestampLike {
        2020-04-25 15:49:11.914
   """,
   group = "datetime_funcs",
-  since = "3.2.0")
+  since = "3.3.0")
 case class LocalTimestamp(timeZoneId: Option[String] = None) extends LeafExpression
   with TimeZoneAwareExpression with CodegenFallback {
 
@@ -1096,7 +1096,7 @@ case class GetTimestamp(
        2016-12-31 00:00:00
   """,
   group = "datetime_funcs",
-  since = "3.2.0")
+  since = "3.3.0")
 // scalastyle:on line.size.limit
 case class ParseToTimestampNTZ(
     left: Expression,
@@ -1143,7 +1143,7 @@ case class ParseToTimestampNTZ(
        2016-12-31 00:00:00
   """,
   group = "datetime_funcs",
-  since = "3.2.0")
+  since = "3.3.0")
 // scalastyle:on line.size.limit
 case class ParseToTimestampLTZ(
     left: Expression,
@@ -2381,7 +2381,7 @@ case class MakeDate(
        NULL
   """,
   group = "datetime_funcs",
-  since = "3.2.0")
+  since = "3.3.0")
 // scalastyle:on line.size.limit
 case class MakeTimestampNTZ(
     year: Expression,
@@ -2440,7 +2440,7 @@ case class MakeTimestampNTZ(
        NULL
   """,
   group = "datetime_funcs",
-  since = "3.2.0")
+  since = "3.3.0")
 // scalastyle:on line.size.limit
 case class MakeTimestampLTZ(
     year: Expression,

sql/catalyst/src/main/scala/org/apache/spark/sql/types/TimestampNTZType.scala

@@ -29,7 +29,7 @@ import org.apache.spark.annotation.Unstable
  * To represent an absolute point in time, use `TimestampType` instead.
  *
  * Please use the singleton `DataTypes.TimestampNTZType` to refer the type.
- * @since 3.2.0
+ * @since 3.3.0
  */
 @Unstable
 class TimestampNTZType private() extends AtomicType {
@@ -59,7 +59,7 @@ class TimestampNTZType private() extends AtomicType {
  * "TimestampNTZType" in byte code. Defined with a private constructor so the companion
  * object is the only possible instantiation.
  *
- * @since 3.2.0
+ * @since 3.3.0
  */
 @Unstable
 case object TimestampNTZType extends TimestampNTZType

sql/core/src/main/scala/org/apache/spark/sql/functions.scala

@@ -2980,7 +2980,7 @@ object functions {
    * All calls of localtimestamp within the same query return the same value.
    *
    * @group datetime_funcs
-   * @since 3.2.0
+   * @since 3.3.0
    */
   def localtimestamp(): Column = withExpr { LocalTimestamp() }