Update CI to v4 actions

Author: sisou

.github/workflows/complete-check.yml

@@ -7,8 +7,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/cache@v2
+    - uses: actions/checkout@v4
+    - uses: actions/cache@v4
       with:
         path: '**/node_modules'
         key: ${{ runner.os }}-modules-${{ hashFiles('**/yarn.lock') }}