Fix ci not work for format error in .yml file (#1051)

* license check whitelist 3rd.css

* ci fmt

.github/workflows/ci.yml

@@ -3,15 +3,15 @@ name: CI
 on: [push, pull_request]
 
 jobs:
-Compile-check:	
-    runs-on: ubuntu-latest	
-    steps:	
-      - uses: actions/checkout@v1	
-      - name: Set up JDK 1.8	
-        uses: actions/setup-java@v1	
-        with:	
-          java-version: 1.8	
-      - name: check	
+  Compile-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - name: check
         run: mvn -U -B clean package assembly:assembly -Dmaven.test.skip=true
   License-check:
     runs-on: ubuntu-latest