collapse two commands

Author: dconeybe

.github/workflows/test-all.yml

@@ -211,10 +211,8 @@ jobs:
         node-version: 16.x
     - name: Bump Node memory limit
       run: echo "NODE_OPTIONS=--max_old_space_size=4096" >> $GITHUB_ENV
-    - name: Test setup and yarn install
-      run: |
-        cp config/ci.config.json config/project.json
-        yarn
+    - run: cp config/ci.config.json config/project.json
+    - run: yarn
     - run: yarn build:${{ matrix.persistence }}
       working-directory: integration/firestore
     - run: xvfb-run yarn karma:singlerun