try run macos test on arm64 once more..

Author: aslonnie

.buildkite/macos/macos.rayci.yml

@@ -101,7 +101,7 @@ steps:
       - macos_wheels
       - oss
     job_env: MACOS
-    instance_type: macos
+    instance_type: macos-arm64
     commands:
       - RAY_INSTALL_JAVA=1 ./ci/ray_ci/macos/macos_ci.sh run_ray_cpp_and_java