update github deploy action to latest versions

Author: owenpshaw

.github/workflows/deploy-prod.yaml

@@ -13,27 +13,31 @@ env:
 
 jobs:
   deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           path: DocViewer
 
       - name: Checkout JSKit
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: breakside/JSKit
           ref: prod
           path: JSKit
 
       - name: Setup Node
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v4
 
       - name: Bootstrap Install JSKit
         run: npm install
         working-directory: JSKit
 
+      - name: Bootstrap Install JSKit (again)
+        run: npm install
+        working-directory: JSKit
+
       - name: Generate Docs
         run: npx jskit doc Documentation/Code/JSKit.doc.yaml ../DocViewer/DocViewerWeb
         working-directory: JSKit