Update .github/workflows/build.yaml

Co-authored-by: James Lamb <[email protected]>

Author: VenkateshJaya

.github/workflows/build.yaml

@@ -71,6 +71,7 @@ jobs:
     secrets: inherit
     uses: rapidsai/shared-workflows/.github/workflows/[email protected]
     with:
+      # build for every combination of arch and CUDA version, but only for the latest Python 
       matrix_filter: group_by([.ARCH, (.CUDA_VER|split(".")|map(tonumber)|.[0])]) | map(max_by(.PY_VER|split(".")|map(tonumber)))
       build_type: ${{ inputs.build_type || 'branch' }}
       branch: ${{ inputs.branch }}