[fix](jni) the offset in map type is int64 (#25394)

The offset in map type column is int64, but #24810 has put as int32, causing error like:

fe/be-java-extensions/java-common/src/main/java/org/apache/doris/common/jni/vec/VectorColumn.java

@@ -605,7 +605,7 @@ public class VectorColumn {
             childColumns[1].appendValue(v);
         }
         reserve(appendIndex + 1);
-        OffHeap.putInt(null, offsets + 8L * appendIndex, startOffset + length);
+        OffHeap.putLong(null, offsets + 8L * appendIndex, startOffset + length);
         return appendIndex++;
     }