update outdate actions versions

Author: mloubout

.github/workflows/deploy_doc.yaml

@@ -10,10 +10,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout master
-        uses: actions/checkout@v1
+        uses: actions/checkout@v4
 
       - name: Set up Python 3.10
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v5
         with:
           python-version: "3.10"
 
@@ -32,7 +32,7 @@ jobs:
       - run: mkdocs build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./site

.github/workflows/example.yaml

@@ -33,10 +33,10 @@ jobs:
 
     steps:
     - name: Checkout devito
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
 
     - name: Set up Python 3.10
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
       with:
         python-version: "3.10"