Copy CI benchmark charts into website publishing action

.github/workflows/deploy-website.yml

@@ -7,9 +7,10 @@ on:
     paths:
       - '.github/workflows/deploy-website.yml'
       - 'website/**'
-    # Review gh actions docs if you want to further define triggers, paths, etc
-    # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#on
-
+  workflow_run:
+    workflows: [Garnet CI BDN.benchmark]
+    types:
+      - completed
 permissions:
   contents: write
 
@@ -22,6 +23,18 @@ jobs:
         working-directory: website
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: main
+      - uses: actions/checkout@v4
+        with:
+          ref: continuousbenchmark
+          sparse-checkout: |
+            website/static/charts
+          path: continuousbenchmark
+      - name: Copy charts
+        run: |
+          mkdir -p static/charts
+          cp ../continuousbenchmark/website/static/charts/* static/charts
       - uses: actions/setup-node@v4
         with:
           node-version: 20