Use pnpm instead of npm

.github/workflows/docs.yml

@@ -21,19 +21,28 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: "lts/*"
-      - name: Cache dependencies
-        uses: actions/cache@v3
+      - uses: pnpm/action-setup@v2
+        name: Install pnpm
         with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          version: 8
+          run_install: false
+      - name: Get pnpm store directory
+        shell: bash
+        run: |
+          echo "STORE_PATH=$(pnpm store path --silent)" >> $GITHUB_ENV
+      - uses: actions/cache@v3
+        name: Setup pnpm cache
+        with:
+          path: ${{ env.STORE_PATH }}
+          key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
           restore-keys: |
-            ${{ runner.os }}-node-
+            ${{ runner.os }}-pnpm-store-
       - name: Install
         working-directory: ./packages/docs
-        run: npm ci
+        run: pnpm install
       - name: Build docs
         working-directory: ./packages/docs
-        run: npm run build
+        run: pnpm build
       - name: Deploy to gh-pages
         uses: peaceiris/actions-gh-pages@v3
         with: