Address second round of review comments

- Replace duplicated test deps in build-wheel.yml with
  uv sync --package <pkg> --only-group test --no-install-project.
- Improve conflict comments to clarify they are about cuda-toolkit
  version constraints, not cuda-bindings compatibility.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: kkraus14

.github/workflows/build-wheel.yml

@@ -307,7 +307,7 @@ jobs:
       - name: Build cuda.bindings Cython tests
         run: |
           uv pip install ${{ env.CUDA_BINDINGS_ARTIFACTS_DIR }}/*.whl
-          uv pip install "pytest>=6.2.4" "pytest-benchmark>=3.4.1" pytest-randomly pytest-repeat "pyglet>=2.1.9" "numpy>=1.21.1" "cython>=3.2,<3.3" "setuptools>=77.0.0"
+          uv sync --package cuda-bindings --only-group test --no-install-project
           pushd ${{ env.CUDA_BINDINGS_CYTHON_TESTS_DIR }}
           bash build_tests.sh
           popd
@@ -322,7 +322,7 @@ jobs:
       - name: Build cuda.core Cython tests
         run: |
           uv pip install ${{ env.CUDA_CORE_ARTIFACTS_DIR }}/"cu${BUILD_CUDA_MAJOR}"/*.whl
-          uv pip install "pytest>=6.2.4" pytest-randomly pytest-repeat "cython>=3.2,<3.3" setuptools
+          uv sync --package cuda-core --only-group test --no-install-project
           pushd ${{ env.CUDA_CORE_CYTHON_TESTS_DIR }}
           bash build_tests.sh
           popd

pyproject.toml

@@ -56,7 +56,9 @@ conflicts = [
         { package = "cuda-pathfinder", group = "test-cu12" },
         { package = "cuda-pathfinder", group = "cu13" },
     ],
-    # cuda-bindings[all] pins cuda-toolkit==13.* which conflicts with cu12 groups
+    # cuda-bindings[all] in this workspace requires cuda-toolkit==13.*.
+    # Any group that requires cuda-toolkit==12.* is unsatisfiable alongside
+    # it, regardless of which cuda-bindings major version pathfinder supports.
     [
         { package = "cuda-bindings", extra = "all" },
         { package = "cuda-core", group = "test-cu12" },