Fix missing parameter to concurrent_test_jobs
diff --git a/buildkite/bazelci.py b/buildkite/bazelci.py
index fa1b95d..02e49ee 100644
--- a/buildkite/bazelci.py
+++ b/buildkite/bazelci.py
@@ -637,7 +637,7 @@
     print_expanded_group(":bazel: Test")
     common_flags = ["--show_progress_rate_limit=5", "--curses=yes", "--color=yes", "--keep_going",
                     "--flaky_test_attempts=3", "--build_tests_only",
-                    "--jobs=" + concurrent_jobs(), "--local_test_jobs=" + concurrent_test_jobs(),
+                    "--jobs=" + concurrent_jobs(), "--local_test_jobs=" + concurrent_test_jobs(platform),
                     "--build_event_json_file=" + bep_file,
                     "--experimental_build_event_json_file_path_conversion=false"]
     caching_flags = []