mod(workflow): add CGO_ENABLED=0 and GOOS=linux when building release

.gitea/workflows/release.yaml

@@ -21,7 +21,7 @@ jobs:
       - name: Install dependencies
         run: go get .
       - name: Build
-        run: go build -ldflags "-s -w" -o ./bin/serve main.go
+        run: CGO_ENABLED=0 GOOS=linux go build -ldflags "-s -w" -o ./bin/serve main.go
       - name: Release build artifacts
         uses: akkuman/gitea-release-action@v1.3.2
         with: