Updated some gh actions

Author: craigwrong

.github/workflows/publish.yml

@@ -27,17 +27,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Pages
-        uses: actions/configure-pages@v3
+        uses: actions/configure-pages@v5
       - name: Install Swift
         uses: sersoft-gmbh/swifty-linux-action@v3
         with:
           release-version: 6.0
       - name: Build with SwiftySites
         run: swift run -c release generate --clean
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@v2
+        uses: actions/upload-pages-artifact@v3
         with:
           path: ./www
 
@@ -51,4 +51,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v2
+        uses: actions/deploy-pages@v4