chore: bump the ci group with 2 updates (#15)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/publish.yml

@@ -31,7 +31,7 @@ jobs:
           pip install accesskit --no-index --find-links dist --force-reinstall
           python -c "import accesskit"
       - name: Upload wheels
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: wheels-${{ matrix.target }}
           path: dist
@@ -60,7 +60,7 @@ jobs:
           pip install accesskit --no-index --find-links dist --force-reinstall
           python -c "import accesskit"
       - name: Upload wheels
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: wheels-linux-${{ matrix.target }}
           path: dist
@@ -88,7 +88,7 @@ jobs:
           pip install accesskit --no-index --find-links dist --force-reinstall
           python -c "import accesskit"
       - name: Upload wheels
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: wheels-windows-${{ matrix.target }}
           path: dist
@@ -103,7 +103,7 @@ jobs:
           command: sdist
           args: --out dist
       - name: Upload sdist
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: wheels-sdist
           path: dist
@@ -117,7 +117,7 @@ jobs:
     needs: [macos-wheels, linux-wheels, windows-wheels, sdist]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           pattern: wheels-*
           merge-multiple: true
@@ -132,7 +132,7 @@ jobs:
     needs: [macos-wheels, linux-wheels, windows-wheels, sdist]
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v5
+      - uses: actions/download-artifact@v6
         with:
           pattern: wheels-*
           path: dist