fix for automated build with Antora

Logs from the automatic build showed errors detailing V1.0.0 was deprecated and made the build fail.
Now updated to use v4

Author: brunoNetId

.github/workflows/docs.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           antora_playbook: site.yml
       - name: "Upload generated site"
-        uses: actions/upload-artifact@v1.0.0
+        uses: actions/upload-artifact@v4
         with:
           name: site
           path: "${{ github.workspace }}/${{ env.SITE_DIR }}"