update CI to use pnpm

Author: lihebi

.github/workflows/test-deploy.yml .github/workflows/build.yml.github/workflows/test-deploy.yml renamed to .github/workflows/build.yml

@@ -1,4 +1,6 @@
-name: Test deployment
+# Make sure the website can be built for each PR.
+
+name: CI Build for pull requests
 
 on:
   pull_request:
@@ -16,9 +18,9 @@ jobs:
       - uses: actions/setup-node@v3
         with:
           node-version: 18
-          cache: yarn
+          cache: pnpm
 
       - name: Install dependencies
-        run: yarn install --frozen-lockfile
+        run: pnpm install --frozen-lockfile
       - name: Test build website
-        run: yarn build
+        run: pnpm build

.github/workflows/deploy.yml

@@ -1,11 +1,15 @@
+# Manually trigger build and deploy to GitHub Pages.
+
 name: Deploy to GitHub Pages
 
 on:
-  push:
-    branches:
-      - main
-    # 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_dispatch:
+  # push:
+  #   branches:
+  #     - main
+  #   # 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
+
 
 jobs:
   deploy:
@@ -16,12 +20,12 @@ jobs:
       - uses: actions/setup-node@v3
         with:
           node-version: 18
-          cache: yarn
+          cache: pnpm
 
       - name: Install dependencies
-        run: yarn install
+        run: pnpm install
       - name: Build website
-        run: yarn build
+        run: pnpm build
 
       # Popular action to deploy to GitHub Pages:
       # Docs: https://github.com/peaceiris/actions-gh-pages#%EF%B8%8F-docusaurus