[Fix] Fix DateUtils can not parse datetime string with local timezone (#9019)

Author: Hisoka-X

seatunnel-common/src/main/java/org/apache/seatunnel/common/utils/DateUtils.java

@@ -57,7 +57,7 @@ public class DateUtils {
                 Pattern.compile("\\d{4}/\\d{2}/\\d{2}"),
                 Pattern.compile("\\d{4}\\.\\d{2}\\.\\d{2}"),
                 Pattern.compile("\\d{8}"),
-                Pattern.compile("\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(\\.\\d{1,9})?Z"),
+                Pattern.compile("\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:\\d{2}(\\.\\d{1,9})?Z?"),
                 Pattern.compile("\\d{2}:\\d{2}:\\d{2}\\+\\d{2}:\\d{2}"),
                 Pattern.compile("\\d{2}:\\d{2}:\\d{2}(\\.\\d{1,9})?"),
                 Pattern.compile("\\d{4}/\\d{1,2}/\\d{1,2}")

seatunnel-common/src/test/java/org/apache/seatunnel/common/utils/DateUtilsTest.java

@@ -20,6 +20,12 @@
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.temporal.TemporalAccessor;
+import java.time.temporal.TemporalQueries;
+
 public class DateUtilsTest {
 
     @Test
@@ -79,4 +85,15 @@ public void testMatchDateTimeFormatter() {
                 "2024-01-10",
                 DateUtils.parse(datetimeStr, DateUtils.matchDateFormatter(datetimeStr)).toString());
     }
+
+    @Test
+    public void testConvertDateTimeWithLocalTimeZone() {
+        String datetimeStr = "2024-12-16T15:33:45";
+        TemporalAccessor parsedTimestamp =
+                DateUtils.matchDateFormatter(datetimeStr).parse(datetimeStr);
+        LocalTime localTime = parsedTimestamp.query(TemporalQueries.localTime());
+        LocalDate localDate = parsedTimestamp.query(TemporalQueries.localDate());
+        LocalDateTime dateTime = LocalDateTime.of(localDate, localTime);
+        Assertions.assertEquals("2024-12-16T15:33:45", dateTime.toString());
+    }
 }