[GR-41382] Exclude transient ownership specs on darwin-amd64 too

Author: eregon

test/mri/excludes/TestFileUtils.rb

@@ -1,4 +1,4 @@
-exclude :test_chown, "transient (GR-41382)" if RUBY_PLATFORM.start_with?('aarch64-darwin')
-exclude :test_chown_R, "transient (GR-41382)" if RUBY_PLATFORM.start_with?('aarch64-darwin')
-exclude :test_chown_dir_group_ownership_not_recursive, "transient (GR-41382)" if RUBY_PLATFORM.start_with?('aarch64-darwin')
-exclude :test_chown_noop, "transient (GR-41382)" if RUBY_PLATFORM.start_with?('aarch64-darwin')
+exclude :test_chown, "transient (GR-41382)" if RUBY_PLATFORM.include?('darwin')
+exclude :test_chown_R, "transient (GR-41382)" if RUBY_PLATFORM.include?('darwin')
+exclude :test_chown_dir_group_ownership_not_recursive, "transient (GR-41382)" if RUBY_PLATFORM.include?('darwin')
+exclude :test_chown_noop, "transient (GR-41382)" if RUBY_PLATFORM.include?('darwin')