fix go env

.github/workflows/build.yml

@@ -147,16 +147,14 @@ jobs:
         with:
           go-version: 1.13
         id: go
-      - name: set go env
+      - name: checkout
+        uses: actions/checkout@v2
+      - name: deploy
         run: |
           export GOPATH=$HOME/go
           export PATH=${PATH}:`go env GOPATH`/bin
           echo $GOPATH
           echo $PATH
-      - name: checkout
-        uses: actions/checkout@v2
-      - name: deploy
-        run: |
           make
           make docker-compose dapp=x2ethereum
           make docker-compose-down dapp=x2ethereum