Add YARN_ENABLE_IMMUTABLE_INSTALLS: false to CI

Author: aryaemami59

.github/workflows/test.yml

@@ -108,6 +108,8 @@ jobs:
 
       - name: Install deps
         working-directory: ./redux-toolkit/examples/publish-ci/${{ matrix.example }}
+        env:
+          YARN_ENABLE_IMMUTABLE_INSTALLS: false
         run: yarn install
 
       - uses: actions/download-artifact@v2