fix: close presign stmt finally

Author: hantmac

databend-jdbc/src/main/java/com/databend/jdbc/PresignContext.java

@@ -68,6 +68,8 @@ public static PresignContext getPresignContext(DatabendConnection connection, Pr
                 }
             }
             throw e;
+        } finally {
+            statement.close();
         }
     }