fix windows test

tests/automatic/full_chain/CMakeLists.txt

 add_subdirectory(simple_chain)
 if (UNIX OR CMAKE_BUILD_TYPE STREQUAL "Release")
     add_subdirectory(simple_chain_usermeta_python)
+    add_subdirectory(send_recv_substreams_python)
 endif()
 add_subdirectory(simple_chain_metadata)
 add_subdirectory(two_beamlines)
@@ -12,4 +13,3 @@ add_subdirectory(simple_chain_filegen_readdata_cache)
 add_subdirectory(simple_chain_filegen_readdata_file)
 add_subdirectory(simple_chain_dataset)
 add_subdirectory(send_recv_substreams)
-add_subdirectory(send_recv_substreams_python)
\ No newline at end of file