Use Google's compiler warning configuration when building Atheris. This makes the OSS build and the internal build more similar, and makes changes that fail on only one of them less likely.
Use Google's compiler warning configuration when building Atheris.
This makes the OSS build and the internal build more similar, and makes changes
that fail on only one of them less likely.

PiperOrigin-RevId: 481941911
Change-Id: I0083c977d0deab59700b20a16d2bb8101b4f91ce

google/atheris,google/atheris,google/atheris,google/atheris