Use pnpm workspace instead of lerna (#1032)

* build: Use pnpm workspace instead of lerna

.github/workflows/nodejs.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [15.x]
+        node-version: [16.x]
 
     steps:
     - uses: actions/checkout@v2
@@ -17,9 +17,32 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: npm install
+    
+    - uses: pnpm/action-setup@v2.0.1
+      name: Install pnpm
+      id: pnpm-install
+      with:
+        version: 7
+        run_install: false
+
+    - name: Get pnpm store directory
+      id: pnpm-cache
+      run: |
+        echo "::set-output name=pnpm_cache_dir::$(pnpm store path)"
+
+    - uses: actions/cache@v3
+      name: Setup pnpm cache
+      with:
+        path: ${{ steps.pnpm-cache.outputs.pnpm_cache_dir }}
+        key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+        restore-keys: |
+          ${{ runner.os }}-pnpm-store-
+
+    - name: Install dependencies
+      run: pnpm install
+        
     - run: npm run ci
-    - run: npm install codecov
+    - run: pnpm install codecov -w
     - name: Upload coverage to Codecov
       run: ./node_modules/.bin/codecov
     - run: curl -s https://codecov.io/bash