No issues so far (#3835)

* Simplify GitHub Actions

* Update stale.yml

Co-authored-by: Christian Clauss <cclauss@me.com>

.github/workflows/directory_writer.yml

@@ -8,8 +8,6 @@ jobs:
     steps:
       - uses: actions/checkout@v1  # v1, NOT v2
       - uses: actions/setup-python@v2
-        with:
-          python-version: 3.x
       - name: Write DIRECTORY.md
         run: |
           scripts/build_directory_md.py 2>&1 | tee DIRECTORY.md

.github/workflows/stale.yml

@@ -6,7 +6,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@v1
+    - uses: actions/stale@v3
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: >