updated action versions

Author: russell-stern

.github/workflows/template-compatibility-comment.yml

@@ -28,7 +28,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Download results artifact
-        uses: actions/download-artifact@v4
+        uses: actions/download-artifact@v8
         with:
           name: template-compat-results
           path: /tmp/compat-results

.github/workflows/template-compatibility.yml

@@ -95,7 +95,7 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Setup Node (for npm)
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v6
         with:
           node-version: '24'
 
@@ -138,7 +138,7 @@ jobs:
 
       - name: Upload results artifact
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: template-compat-results
           path: /tmp/compat-results/