Update GitHub Artifact Actions

Author: renovate[bot]

.github/workflows/build.yml

@@ -143,7 +143,7 @@ jobs:
             {delocate_archs} -w {dest_dir} {wheel};
             bash $PROJ_DIR/ci-utils/after-build.sh
           CIBW_BUILD_VERBOSITY: 1
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: artifact-${{ runner.os }}-${{ runner.arch }}-${{ matrix.cibw-build-kind }}
           path: ./wheelhouse/*.whl
@@ -159,7 +159,7 @@ jobs:
         run: pip install 'postprocess-sdist-make-rust-ext-opt>=0.2,<0.3'
       - name: Post-process sdist to make extension optional
         run: postprocess-sdist-make-rust-ext-opt -fO dist dist/*.tar.gz
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: artifact-source
           path: dist/*.tar.gz
@@ -171,7 +171,7 @@ jobs:
       id-token: write  # needed for trusted publishing
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/download-artifact@v6
         with:
           pattern: artifact-*
           merge-multiple: true