Update cmake-multi-platform.yml

.github/workflows/cmake-multi-platform.yml

@@ -58,12 +58,23 @@ jobs:
       run: export PYTHONPATH=build/tools/torch-mlir/python_packages/torch_mlir:build/tools/mpact/python_packages/mpact
       shell: bash
 
+    - name: Fetch requirements.txt
+      uses: actions/checkout@v4
+      with:
+        repository: llvm/torch-mlir
+        ref: refs/heads/main
+        sparse-checkout: |
+          requirements.txt
+          torchvision-requirements.txt
+        sparse-checkout-cone-mode: false
+        path: requirements
+
     - name: Install requirements
       run: |
            echo "$PWD"
            python -m pip install --upgrade pip
-           python -m pip install -r externals/torch-mlir/requirements.txt
-           python -m pip install -r externals/torch-mlir/torchvision-requirements.txt
+           python -m pip install -r requirements/requirements.txt
+           python -m pip install -r requirements/torchvision-requirements.txt
 
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.