feat: add trace and timeout support for the timer (#2750)

* feat: add trace and timeout support for the timer

Co-authored-by: gw123 <iamakillerforyou@gmail.com>
Signed-off-by: saltbo <saltbo@foxmail.com>

* fix: add error check for the lint

Signed-off-by: saltbo <saltbo@foxmail.com>

---------

Signed-off-by: saltbo <saltbo@foxmail.com>
Co-authored-by: gw123 <iamakillerforyou@gmail.com>

pkg/publisher/publisher_test.go

@@ -0,0 +1,34 @@
+package publisher
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/fission/fission/pkg/utils/loggerfactory"
+	otelUtils "github.com/fission/fission/pkg/utils/otel"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPublisher(t *testing.T) {
+	fnName := "test-fn"
+	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, "/"+fnName, r.URL.Path)
+		assert.Equal(t, "aaa", r.Header.Get("X-Fission-Test"))
+		assert.Contains(t, r.Header, "Traceparent")
+	}))
+
+	ctx := context.Background()
+	logger := loggerfactory.GetLogger()
+	shutdown, err := otelUtils.InitProvider(ctx, logger, fnName)
+	assert.NoError(t, err)
+	if shutdown != nil {
+		defer shutdown(ctx)
+	}
+
+	wp := MakeWebhookPublisher(logger, s.URL)
+	wp.Publish(ctx, "", map[string]string{"X-Fission-Test": "aaa"}, fnName)
+	time.Sleep(time.Second * 1)
+}