Use CUDA 12.4 for packaging (#534)

Author: mthrok

.github/workflows/packaging.yml

@@ -62,7 +62,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
-        cuda-version: ["12.6"]
+        cuda-version: ["12.4"]
         use-nvdec: ["nvdec"]
     uses: ./.github/workflows/_build_linux_cuda.yml
     with: