D3PDMakerTest: Increase test timeout.

Test has been timing out in recent nightlies.

PhysicsAnalysis/D3PDMaker/D3PDMakerTest/CMakeLists.txt

@@ -59,5 +59,5 @@ set( D3PDMAKERTEST_REFERENCE_TAG D3PDMakerTest/D3PDMakerTest-01-00-00 )
 atlas_add_test( D3PDTest1
   SCRIPT test/D3PDTest1.sh
   POST_EXEC_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/test/post_check.sh D3PDTest1"
-  PROPERTIES TIMEOUT 300
+  PROPERTIES TIMEOUT 600
   ENVIRONMENT "ATLAS_REFERENCE_TAG=${D3PDMAKERTEST_REFERENCE_TAG}" )