message: Run the ObjC tests.
  Exclude the KeysetHandle tests for now -- they include tests using the Keychain which the test machines do not support natively.
diff: @@ -707,6 +707,10 @@ objc_library(
  "Tests/UnitTests/**/*.m",
  "Tests/UnitTests/**/*.mm",
  ],
  + exclude = [
  + # TODO(b/155060426) Enable the KeysetHandle Tests.
  + "Tests/UnitTests/core/TINKKeysetHandleTest.mm",
  + ],
  ),
  deps = [
  ":aead_internal",
  