Bump GitHub Actions to fix deprecated upload-artifact v3

actions/upload-pages-artifact@v1 internally used the deprecated
actions/upload-artifact@v3, causing auto-failures. Updated all
actions to current versions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jonemo

.github/workflows/publish.yaml

@@ -26,9 +26,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Node
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: 18
           cache: 'npm'
@@ -41,9 +41,9 @@ jobs:
       - name: Build
         run: npm run build-only
       - name: Setup Pages
-        uses: actions/configure-pages@v3
+        uses: actions/configure-pages@v5
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v1
+        uses: actions/upload-pages-artifact@v3
         with:
           path: './dist'
 
@@ -59,6 +59,6 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1
+        uses: actions/deploy-pages@v4
         # this step knows where to pick up the files because the build job used the 
         # actions/upload-pages-artifact action