Update the release pointing to CSM 1.16 (#1741)

Author: anandrajak1

.github/workflows/deploy.yml

@@ -3,7 +3,7 @@ name: Build w/ Hugo & deploy to GitHub Pages
 on:
  push:
    branches:
-     - release-1.15.0
+     - release-1.16.0
  workflow_dispatch:
 
 jobs: