Various fixes for the new build system (+ Xcode 14)

[thii]

• Add resigner targets to test_suite targets' schemes so the test suites schemes work properly
• Mark our build script as always needing to run (always out of date) since we always need to run bazel to make sure it's up to date.
• Don't disable signing for iOS simulator since we still need Xcode to codesign the test runner + injected dylibs.
• Resign the new XCTestSupport.framework

PiperOrigin-RevId: 457805542 (cherry picked from commit b28485834eafe807c3a3bac0484801b20e98c7ac)