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] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
           before-script-linux: |
             dnf install -y clang-libs clang || sudo apt install llvm-dev libclang-dev clang
       - name: Upload wheels
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-linux-${{ matrix.platform.target }}
           path: dist
@@ -92,7 +92,7 @@ jobs:
   #        before-script-linux: |
   #          dnf install -y clang-libs clang || apt install llvm-dev libclang-dev clang
   #    - name: Upload wheels
-  #      uses: actions/upload-artifact@v5
+  #      uses: actions/upload-artifact@v6
   #      with:
   #        name: wheels-musllinux-${{ matrix.platform.target }}
   #        path: dist
@@ -171,7 +171,7 @@ jobs:
           args: --release --out dist --find-interpreter
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
       - name: Upload wheels
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-windows-${{ matrix.platform.target }}
           path: dist
@@ -222,7 +222,7 @@ jobs:
           args: --release --out dist --find-interpreter
           sccache: ${{ !startsWith(github.ref, 'refs/tags/') }}
       - name: Upload wheels
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-macos-${{ matrix.platform.target }}
           path: dist
@@ -249,7 +249,7 @@ jobs:
           command: sdist
           args: --out dist
       - name: Upload sdist
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: wheels-sdist
           path: dist