To support #111760, chromium lab team has helped installed certificates in all Host Only Mac bots in different pools (try, prod, staging). Tracking bug: crbug.com/1370813

To unblock build+test separate, they would help with a one-time custom change to copy over mobile provisioning file to the default location ${HOME}/Library/MobileDevice/Provisioning Profiles/.

From Flutter side, for the long term we need maintain the mobile provisioning file in recipes repo, and install it to specific location when running tests, and let xcode point to the new location. This will relieve us from relying on Chromium team updating the file anytime an update is needed, and also helps avoid regression when a reinstall of a host is conducted from chromium lab side.