Bump actions/download-artifact from 4 to 5

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4 to 5.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4...v5)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-test-reusable.yml

@@ -239,7 +239,7 @@ jobs:
           mode: ${{ inputs.pytorch_mode }}
 
       - name: Download Triton wheels
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           name: triton-${{ inputs.python_version }}-${{ inputs.runner_label || inputs.driver_version }}
 
@@ -396,7 +396,7 @@ jobs:
           key: pip-${{ inputs.python_version }}-${{ hashFiles('pyproject.toml', 'setup.py') }}-${{ env.PIP_CACHE_NUMBER }}
 
       - name: Download test reports
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v5
         with:
           pattern: test-reports-*-${{ inputs.python_version }}-${{ inputs.runner_label || inputs.driver_version }}
           path: reports