Update docs.yml

.github/workflows/docs.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: mkdocs
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: preparing_environment
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: 3.x
       - name: installing_mkdocs
@@ -23,7 +23,7 @@ jobs:
     needs: deploying_mkdoc
     steps:
       - name: doxygen
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: debugging
         run: echo `pwd`; echo `ls docs` ; echo `ls docs/*`
       - name: preparing_doxygen
@@ -34,7 +34,7 @@ jobs:
       - name: debugging_2
         run: echo `pwd`; echo `ls docs` ; echo `ls docs/*`
       - name: deploy_doxygen
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
             github_token: ${{ secrets.GITHUB_TOKEN }}
             publish_dir: ./docs/docs/html