clear cache after torch install

Author: RasmusOrsoe

.github/workflows/build.yml

@@ -108,7 +108,8 @@ jobs:
         shell: bash
         run: |
           source ~/venv/bin/activate
-          pip3 install torch==${{ matrix.torch_version }}+${{ matrix.hardware }} torchvision torchaudio --index-url https://download.pytorch.org/whl/${{ matrix.hardware }}
+          pip3 install --no-cache-dir torch==${{ matrix.torch_version }}+${{ matrix.hardware }} torchvision torchaudio --index-url https://download.pytorch.org/whl/${{ matrix.hardware }}
+          rm -rf ~/.cache/pip
       - name: Install package
         uses: ./.github/actions/install
         with: