Add dyntype to IncompleteActlimited test.

The test is meant to illustrate a failure of an incomplete actrange when the rest of the line is correct.

PiperOrigin-RevId: 451895379
Change-Id: I9782fae7055c9bed87ccbc0fda18495aacb2ae8a

test/xml/xml_native_reader_test.cc

@@ -264,7 +264,7 @@ TEST_F(ActuatorTest, IncompleteActlimited) {
       </body>
     </worldbody>
     <actuator>
-      <general joint="hinge" actlimited="true" actrange="-1"/>
+      <general joint="hinge" actlimited="true" dyntype="filter" actrange="-1"/>
     </actuator>
   </mujoco>
   )";