Update docs.yml for EOL github action versions (#518)

* dummy pr to check CI

* Update ctest.yml

* updated to v3

* Update docs.yml

.github/workflows/docs.yml

@@ -13,10 +13,10 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: 3.10
       - run: pip install mkdocs-material 
       - name: Build site
         run: mkdocs build