Bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...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/wheel_workflow.yml

@@ -59,7 +59,7 @@ jobs:
     - name: Check metadata
       run: pipx run twine check dist/*
 
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: cibw-sdist
         path: dist/*.tar.gz
@@ -148,7 +148,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.arch }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.manylinux }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: cibw-wheels-${{ matrix.python }}-${{ matrix.manylinux }}
           path: ./wheelhouse/*.whl
@@ -210,7 +210,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.arch }}
           CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.manylinux }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: cibw-wheels-${{ matrix.python }}-${{ matrix.manylinux }}
           path: ./wheelhouse/*.whl
@@ -269,7 +269,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.python }}
           CIBW_ARCHS: ${{ matrix.arch }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: cibw-wheels-${{ matrix.python }}
           path: ./wheelhouse/*.whl
@@ -324,7 +324,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.python }}
           CIBW_ARCHS: ${{ matrix.arch }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: cibw-wheels-${{ matrix.python }}
           path: ./wheelhouse/*.whl
@@ -379,7 +379,7 @@ jobs:
           CIBW_BUILD: ${{ matrix.python }}
           CIBW_ARCHS: ${{ matrix.arch }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: cibw-wheels-${{ matrix.python }}
           path: ./wheelhouse/*.whl