Updated github action

Updated composer.lock

Author: Geolim4

.github/workflows/tests.yml

@@ -18,7 +18,7 @@ jobs:
         uses: zhulik/redis-action@v1.0.0
         with:
           redis version: '5'
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2
 
       - name: Validate composer.json and composer.lock
         run: composer validate