79953 Manually roll engine to 56b13559807bf4cb83d16c659757d6ae4f209490 (cla: yes, engine)

platform-ios - 16 pull request(s)

74777 Replace MockXcode with Xcode.test in unit tests (cla: yes, platform-ios, team, tool, waiting for tree to go green)

75163 Avoid iOS local networking dialog in integration tests (cla: yes, platform-ios, team, waiting for tree to go green)

75351 Suggest precache instead of build when engine artifacts are missing (cla: yes, platform-ios, tool)

75387 Install prebuilt iOS app only once (cla: yes, platform-ios, tool)