Specify ArduinoFake library version to use.

This was why I had to apply 6d261d6.
The lead to confusion with the CI.
Being more specific is better.

Author: dhebbeker

platformio.ini

@@ -25,7 +25,7 @@ monitor_speed = 115200
 platform = native
 lib_deps =
 	unity
-	ArduinoFake
+	ArduinoFake@^0.4.0
 	utilities
 lib_ldf_mode = chain ; to simplify mocking, do not use deep mode
 build_flags =