Use the ubuntu-24.04 runners in CI

.github/workflows/docs.yaml

@@ -17,7 +17,7 @@ env:
 jobs:
   build:
     name: Build the documentation
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - name: Checkout the code
         uses: actions/checkout@v4.2.2
@@ -56,7 +56,7 @@ jobs:
 
   deploy:
     name: Deploy the documentation on GitHub Pages
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     needs: build
     if: github.ref == 'refs/heads/main'