chore(deps): bump actions/upload-artifact from 3 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v3...v7)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pip-release.yml

@@ -109,7 +109,7 @@ jobs:
           package-dir: python
           output-dir: wheelhouse
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: wheels-${{ matrix.os }}-${{ matrix.arch }}
           path: wheelhouse/*.whl
@@ -130,7 +130,7 @@ jobs:
       - name: Build sdist
         working-directory: python
         run: maturin sdist --out ../sdist
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: sdist
           path: sdist/*.tar.gz
@@ -209,7 +209,7 @@ jobs:
             exit 1
           fi
           echo "Tombstone wheel correctly raises ImportError with migration URL."
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: tombstone
           path: tombstone-dist/*