build(deps): bump actions/download-artifact in /.github/workflows

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 2 to 4.1.7.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v2...v4.1.7)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
...

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

.github/workflows/maintenance.yml

@@ -59,15 +59,15 @@ jobs:
       run: |
         rm -f environment-*
     - name: Get cached environment-windows-latest.yml
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4.1.7
       with:
         name: environment-windows-latest.yml
     - name: Get cached environment-macos-latest.yml
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4.1.7
       with:
         name: environment-macos-latest.yml
     - name: Get cached environment-ubuntu-latest.yml
-      uses: actions/download-artifact@v2
+      uses: actions/download-artifact@v4.1.7
       with:
         name: environment-ubuntu-latest.yml
     - name: Run automatic code formatting