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

Updates `actions/download-artifact` from 6 to 7
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v6...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/download-artifact
  dependency-version: '7'
  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/pypi.yml

@@ -49,7 +49,7 @@ jobs:
           CIBW_ARCHS_WINDOWS: AMD64 x86
           CIBW_BUILD: ${{ matrix.python-version }}-*
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: artifact_wheels_${{ matrix.python-version }}_${{ matrix.os }}
           path: ./wheelhouse/*.whl
@@ -74,7 +74,7 @@ jobs:
       - name: Build sdist
         run: python setup.py sdist
 
-      - uses: actions/upload-artifact@v5
+      - uses: actions/upload-artifact@v6
         with:
           name: artifact_sdist
           path: dist/*.tar.gz
@@ -90,7 +90,7 @@ jobs:
       with:
         python-version: "3.12"
 
-    - uses: actions/download-artifact@v6
+    - uses: actions/download-artifact@v7
       with:
         pattern: artifact_*
         merge-multiple: true