feat: opentelemetry integration, removed self designed tracing (#1111)

* feat: opentelemetry integration, removed self designed tracing

* feat: support zipkin on opentelemetry integration

* feat: support zipkin on opentelemetry integration, enable it in conf

* style: format code

* fix: support logx without exporter configured

* fix: check return values

* refactor: simplify code

* refactor: simplify opentelemetry integration

* ci: fix staticcheck errors

zrpc/internal/serverinterceptors/crashinterceptor_test.go

@@ -22,8 +22,7 @@ func TestStreamCrashInterceptor(t *testing.T) {
 }
 
 func TestUnaryCrashInterceptor(t *testing.T) {
-	interceptor := UnaryCrashInterceptor()
-	_, err := interceptor(context.Background(), nil, nil,
+	_, err := UnaryCrashInterceptor(context.Background(), nil, nil,
 		func(ctx context.Context, req interface{}) (interface{}, error) {
 			panic("mock panic")
 		})