update github action to v2

Author: vietnguyen-td

.github/workflows/build.yml

@@ -83,8 +83,7 @@ jobs:
           MYSQL_PASSWORD: password
     steps:
     - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v2
+    - uses: actions/setup-java@v2
       with:
         java-version: 1.8
     - name: Connect
@@ -119,6 +118,9 @@ jobs:
           POSTGRES_PASSWORD: postgres
     steps:
     - uses: actions/checkout@v2
+    - uses: actions/setup-java@v2
+      with:
+        java-version: 1.8
     - name: Connect
       run: psql -h 127.0.0.1 -p 5432 -U postgres -d postgres -c "\l"
       env: