Merge branch 'hotfix/last_bug' into 'master'

Fix  #ODPS-35337

last应该回到最后一行有效行，UT 等会补到 Merge Request #18 中

See merge request !22

src/main/java/com/aliyun/odps/jdbc/OdpsQueryResultSet.java

@@ -197,7 +197,7 @@ public boolean isLast() throws SQLException {
   @Override
   public boolean last() throws SQLException {
     checkClosed();
-    cursorRow = totalRows;
+    cursorRow = totalRows - 1;
     return totalRows > 0;
   }