Bump actions/upload-artifact from 4 to 7

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 7.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](https://github.com/actions/upload-artifact/compare/v4...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/check.yml

@@ -155,7 +155,7 @@ jobs:
           manylinux: auto
           working-directory: reconcile-python
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: wheels-${{ matrix.os }}-${{ matrix.target }}
           path: reconcile-python/dist/*.whl
@@ -177,7 +177,7 @@ jobs:
           args: --out dist
           working-directory: reconcile-python
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v7
         with:
           name: sdist
           path: reconcile-python/dist/*.tar.gz