Add a Failer to test_game_engine_with_instantiated_scene

[pathunstrom]

Relevant test: https://github.com/ppb/pursuedpybear/blob/canon/tests/test_engine.py#L44

We need to add a Failer with a reasonable timeout to this test to prevent infinite loops causing CI time outs.

Failer defaults to 1 second, which is reasonable for most tests that will fail with it.

Import ppb.testutils.Failer and add it to the basic_systems in the test in question.