ci: fix main builder goimports error

Author: IronCore864

.github/workflows/main-builder.yml

@@ -38,6 +38,8 @@ jobs:
         uses: actions/setup-go@v2
         with:
           go-version: 1.17
+      - name: Install goimports
+        run: go install golang.org/x/tools/cmd/goimports@latest
       - name: Cache
         uses: actions/cache@v2
         with: