chore(CI): bump the actions group with 2 updates

Bumps the 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: actions
- dependency-name: actions/download-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

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

Author: dependabot[bot]

.github/workflows/wheels.yml

@@ -53,7 +53,7 @@ jobs:
           CIBW_ARCHS_WINDOWS: ${{ matrix.name == 'windows-x86' && 'auto32' || 'native' }}
         run: python -m cibuildwheel --output-dir wheelhouse
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: wheels-${{ matrix.name }}
           path: ./wheelhouse/*.whl
@@ -85,7 +85,7 @@ jobs:
           CIBW_ARCHS: ppc64le
           CIBW_ENVIRONMENT: LIBSSH2_VERSION=1.11.1 LIBGIT2_VERSION=1.9.1 LIBGIT2=/project/ci
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: wheels-linux-ppc
           path: ./wheelhouse/*.whl
@@ -107,7 +107,7 @@ jobs:
       - name: Build sdist
         run: pipx run build --sdist --outdir dist
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v5
         with:
           name: wheels-sdist
           path: dist/*
@@ -117,7 +117,7 @@ jobs:
         run: python .github/workflows/parse_release_notes.py
 
       - name: Upload Release Notes
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: release-notes
           path: ReleaseNotes.md
@@ -132,7 +132,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           path: dist
           pattern: wheels-*
@@ -148,7 +148,7 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v6
       with:
         path: dist
         pattern: wheels-*
@@ -163,7 +163,7 @@ jobs:
         password: ${{ secrets.PYPI_API_TOKEN }}
         skip-existing: true
 
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v6
       with:
         name: release-notes
     - name: Create GitHub Release