Update `AddScopes` to include previously requested `tokenClaims` in the… #868

Job	Run time
pod-lib-lint (macos-13, GoogleSignIn.podspec)	14m 52s
spm-build-test (macos-15, iphonesimulator)	2m 26s
pod-lib-lint (macos-13, GoogleSignInSwiftSupport.podspec, --use-static-frameworks)	15m 50s
pod-lib-lint (macos-13, GoogleSignIn.podspec, --use-static-frameworks)	17m 18s
spm-build-test (macos-15, macosx)	2m 57s
pod-lib-lint (macos-13, GoogleSignInSwiftSupport.podspec)	11m 19s
	1h 4m 42s

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