use local workflow matrix

Author: brandon-b-miller

.github/workflows/pr.yaml

@@ -68,7 +68,7 @@ jobs:
       build_type: pull-request
       script: "ci/test_conda.sh true"
       run_codecov: false
-      matrix_filter: map(select(.ARCH == "amd64" and .CUDA_VER == "12.5.1" and .PY_VER == "3.12"))
+      matrix_filter: map(select(.ARCH == "amd64" and .CUDA_VER == "12.5.1" and .PY_VER == "3.11"))
   build-wheels:
     needs:
       - compute-matrix