github: move fmt-check into lint

.github/workflows/main.yml

@@ -32,23 +32,6 @@ env:
   GO_VERSION: 1.19.2
 
 jobs:
-  ########################
-  # format code
-  ########################
-  fmt-check:
-    name: check code format
-    runs-on: ubuntu-latest
-    steps:
-      - name: git checkout
-        uses: actions/checkout@v3
-
-      - id: setup
-        name: Setup go env
-        uses: ./.github/actions/setup-go
-
-      - name: fmt
-        run: make fmt-check
-
   ########################
   # RPC and mobile compilation check
   ########################
@@ -119,6 +102,9 @@ jobs:
         name: Setup go env
         uses: ./.github/actions/setup-go
 
+      - name: check code format
+        run: make fmt-check
+
       - name: lint
         run: GOGC=50 make lint