kleaf: Wrap integration_test with hermetic_test

so it can use toys from hermetic-tools.

In this change, hermetic_tools (for tests)
run_additional_setup is used before
running integration test so that git / repo
still works in the integration test.

Bug: 338263410
Change-Id: I2941a08d97e71282027654ccaf3e0c6eb88ee894
1 file changed