update workflow action

Author: mertasan

.github/workflows/tests.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - name: Use Node ${{ matrix.node-version }}
-      - uses: actions/checkout@v3
+        uses: actions/checkout@v3
       - name: Setup node ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with: