Add --immutable to github action

.github/workflows/test.yaml

@@ -25,7 +25,7 @@ jobs:
       - name: Install yarn
         run: npm install -g yarn
       - name: Install dependencies
-        run: yarn
+        run: yarn install  --immutable
       # - name: Create build folder
       #   run: mkdir build
       # - name: Run Linters