ci: Add Yarn 2

Author: Z4karia

.github/workflows/main.yaml

@@ -28,6 +28,10 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: "^16.10.0"
+      - name: Install Yarn 2
+        run: |
+          npm install -g yarn
+          yarn set version berry
       - name: Install dependencies
         run: yarn install
       - name: Run test