ci: really, what's in there?

.github/workflows/nightly.yml

@@ -162,7 +162,6 @@ jobs:
     runs-on: [ubuntu-latest]
     needs: [build_windows, build_macos, build_macos_arm, build_linux]
     steps:
-      - uses: actions/checkout@v4
       - uses: actions/setup-python@v2
         with:
           python-version: '3.8.x'
@@ -205,7 +204,7 @@ jobs:
           BUCKET: ${{ secrets.B2_BUCKET }}
           DAYS_TO_KEEP: ${{ secrets.B2_DAYS_TO_KEEP }}
         run: |
-          tree
+          tree -d -L 2
           python3 ci/nightly.py artifact windows-amd64 windows_artifacts/
           python3 ci/nightly.py artifact linux-amd64 linux_artifacts/dist.tar.gz
           python3 ci/nightly.py artifact macos-amd64 macos_artifacts/dist.tar.gz