Add multiprocess TPU tests to OSS presubmit.

PiperOrigin-RevId: 834457878

Author: emilyfertig

ci/run_bazel_test_tpu.sh

@@ -224,7 +224,8 @@ else
     //tests:layout_test_tpu \
     //tests:pjit_test_tpu \
     //tests:python_callback_test_tpu \
-    //tests:ragged_collective_test_tpu
+    //tests:ragged_collective_test_tpu \
+    //tests/multiprocess:tpu_tests
 
   # Store the return value of the second bazel command.
   second_bazel_cmd_retval=$?