Update all-build.yml

.github/workflows/all-build.yml

@@ -9,16 +9,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+      - uses: textbook/git-checkout-submodule-action@2.1.1
       - name: Set up JDK 1.8
         uses: actions/setup-java@v1
         with:
           java-version: 1.8
       - name: chmod +x gradlew
         run: chmod +x gradlew
-      - name: git submodule init
-        run: git submodule init
-      - name: git submodule update --remote
-        run: git submodule update --remote
       - name: Init gradle project
         run: ./gradlew clean
       - name: Build all