Fix working dir

.github/workflows/nodejs.yml

@@ -8,9 +8,10 @@ on:
 
 jobs:
   build:
+    env:
+      CLIENT_DIR: ./client
 
     runs-on: ubuntu-latest
-
     strategy:
       matrix:
         node-version: [10.x, 12.x, 13.x]
@@ -21,9 +22,11 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
-    - run: cd client/
     - run: npm ci
+      working-directory: ${{env.CLIENT_DIR}}
     - run: npm run build --if-present
+      working-directory: ${{env.CLIENT_DIR}}
     - run: npm test
+      working-directory: ${{env.CLIENT_DIR}}
       env:
         CI: true