Bump the github-actions group with 2 updates

Bumps the github-actions group with 2 updates: [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact).


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

Updates `actions/download-artifact` from 5 to 6
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v5...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/cibuildwheel.yml

@@ -38,7 +38,7 @@ jobs:
           pip install build
           &&  python -m build --sdist . --outdir dist
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: pypi-artifacts
           path: ${{ github.workspace }}/dist/*.tar.gz
@@ -93,7 +93,7 @@ jobs:
       env:
         CIBW_ARCHS: ${{ matrix.arch }}
 
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v5
       with:
         name: pypi-artifacts-${{ matrix.os }}-${{ matrix.arch }}
         path: ${{ github.workspace }}/wheelhouse/*.whl
@@ -130,7 +130,7 @@ jobs:
         env:
           CIBW_ARCHS: ${{ matrix.arch }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: pypi-artifacts-${{ matrix.os }}-${{ matrix.arch }}
           path: ${{ github.workspace }}/wheelhouse/*.whl
@@ -141,7 +141,7 @@ jobs:
     name: "Show artifacts"
     runs-on: ubuntu-22.04
     steps:
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v6
       with:
         pattern: pypi-artifacts*
         path: ${{ github.workspace }}/dist
@@ -159,7 +159,7 @@ jobs:
     # upload to PyPI for every tag starting with 'v'
     if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags/v')
     steps:
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v6
       with:
         pattern: pypi-artifacts*
         path: ${{ github.workspace }}/dist