This CL also adds the prefix RTC_TESTING to `ios_internal_pure_release_bot_arm64` in order to avoid ODR violations. Bug: b/292472934 Change-Id: If63020e679c8670b4c797217eb38fc8c2954d422 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/313240 Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/main@{#40476}