tiny tweaks

.github/workflows/build_and_test.yml

@@ -167,8 +167,11 @@ jobs:
       - name: Run ChatGPT API test
         env:
           TOKENIZERS_PARALLELISM: ${{ matrix.inference_engine == 'tinygrad' && 'true' || 'false' }}
-          SUPPORT_BF16: ${{ matrix.inference_engine == 'tinygrad' && '0' || '0' }}
+          SUPPORT_BF16: '0'
           CLANG: ${{ matrix.inference_engine == 'tinygrad' && '1' || '0' }}
+          METAL_DEBUG_ERROR_MODE: '0'
+          METAL_DEVICE_WRAPPER_TYPE: '1'
+          METAL_XCODE: '1'
         run: |
           source env/bin/activate