fix: gopath doesn't be set in github actions runner

Signed-off-by: Daniel Hu <tao.hu@merico.dev>

Author: daniel-hutao

.github/workflows/ci.yaml

@@ -13,9 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: 1.20
+          go-path: ${{ runner.workspace }}/go
 
       - name: Check out code
         uses: actions/checkout@v2