Attempt migrations once #774

Job	Run time
spm-build-test (macos-latest, iphonesimulator)	2m 5s
pod-lib-lint (macos-13, GoogleSignIn.podspec, --use-static-frameworks)	10m 59s
spm-build-test (macos-latest, macosx)	1m 43s
pod-lib-lint (macos-13, GoogleSignInSwiftSupport.podspec)	11m 18s
pod-lib-lint (macos-13, GoogleSignIn.podspec)	39m 22s
pod-lib-lint (macos-13, GoogleSignInSwiftSupport.podspec, --use-static-frameworks)	10m 22s
	1h 15m 49s

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