ci: fix artifact path prefix for missing windows payloads (ollama#8052)

upload-artifacts strips off leading common paths so when
the ./build/ artifacts were removed, the ./dist/windows-amd64
prefix became common and was stripped, making the
later download-artifacts place them in the wrong location

.github/workflows/release.yaml

@@ -447,15 +447,19 @@ jobs:
       - uses: actions/download-artifact@v4
         with:
           name: generate-windows-cpu
+          path: dist/windows-amd64/
       - uses: actions/download-artifact@v4
         with:
           name: generate-windows-cuda-11.3
+          path: dist/windows-amd64/
       - uses: actions/download-artifact@v4
         with:
           name: generate-windows-cuda-12.4
+          path: dist/windows-amd64/
       - uses: actions/download-artifact@v4
         with:
           name: generate-windows-rocm
+          path: dist/windows-amd64/
       - uses: actions/download-artifact@v4
         with:
           name: windows-arm64