correct gpu number

Author: mori360

.github/workflows/integration_test_4gpu_amd.yaml renamed to .github/workflows/integration_test_8gpu_amd.yaml

@@ -36,4 +36,4 @@ jobs:
         python -m pip install --force-reinstall --pre torch --index-url https://download.pytorch.org/whl/nightly/cu126
         USE_CPP=0 python -m pip install --pre torchao --index-url https://download.pytorch.org/whl/nightly/cu126
         mkdir artifacts-to-be-uploaded
-        python ./tests/integration_tests.py artifacts-to-be-uploaded --ngpu 4
+        python ./tests/integration_tests.py artifacts-to-be-uploaded --ngpu 8