Reduce parallel jobs in CI

Author: narendasan

.github/workflows/build-test.yml

@@ -194,7 +194,7 @@ jobs:
         pushd .
         cd tests/py/dynamo
         ${CONDA_RUN} python -m pip install --pre pytest-xdist timm transformers parameterized expecttest --use-deprecated=legacy-resolver
-        ${CONDA_RUN} python -m pytest -n 10 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_runtime_test_results.xml runtime/
-        ${CONDA_RUN} python -m pytest -n 10 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_partitioning_test_results.xml partitioning/
-        ${CONDA_RUN} python -m pytest -n 10 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_lowering_test_results.xml lowering/
+        ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_runtime_test_results.xml runtime/
+        ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_partitioning_test_results.xml partitioning/
+        ${CONDA_RUN} python -m pytest -n 4 --junitxml=${RUNNER_TEST_RESULTS_DIR}/tests_py_dynamo_core_lowering_test_results.xml lowering/
         popd