chore(deps): bump actions/upload-artifact from 5 to 6

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

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

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

Author: dependabot[bot]

.github/workflows/ci-python.yml

@@ -84,7 +84,7 @@ jobs:
           sccache: true
           manylinux: auto
       - name: Upload wheels
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-linux-${{ matrix.target }}
           path: python/dist
@@ -134,7 +134,7 @@ jobs:
           args: --release --out dist --interpreter 3.10
           sccache: true
       - name: Upload wheels
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-windows-${{ matrix.target }}
           path: python/dist
@@ -165,7 +165,7 @@ jobs:
           args: --release --out dist --interpreter 3.10
           sccache: true
       - name: Upload wheels
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-macos-${{ matrix.target }}
           path: dist
@@ -190,7 +190,7 @@ jobs:
           command: sdist
           args: --out dist
       - name: Upload sdist
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-sdist
           path: python/dist