fix clang-tidy error

Author: BewareMyPower

lib/Client.cc

@@ -70,8 +70,7 @@ std::variant<Producer, Error> Client::createProducerV2(const std::string& topic)
 std::variant<Producer, Error> Client::createProducerV2(const std::string& topic,
                                                        const ProducerConfiguration& conf) {
     Promise<bool, std::variant<Producer, Error> > promise;
-    createProducerAsyncV2(topic, conf,
-                          [promise](std::variant<Producer, Error> result) { promise.setValue(result); });
+    createProducerAsyncV2(topic, conf, [promise](const auto& result) { promise.setValue(result); });
     Future<bool, std::variant<Producer, Error> > future = promise.getFuture();
 
     std::variant<Producer, Error> result;
@@ -116,7 +115,7 @@ std::variant<Consumer, Error> Client::subscribeV2(const std::string& topic,
                                                   const ConsumerConfiguration& conf) {
     Promise<bool, std::variant<Consumer, Error> > promise;
     subscribeAsyncV2(topic, subscriptionName, conf,
-                     [promise](std::variant<Consumer, Error> result) { promise.setValue(result); });
+                     [promise](const auto& result) { promise.setValue(result); });
     Future<bool, std::variant<Consumer, Error> > future = promise.getFuture();
 
     std::variant<Consumer, Error> result;
@@ -170,7 +169,7 @@ std::variant<Consumer, Error> Client::subscribeV2(const std::vector<std::string>
                                                   const ConsumerConfiguration& conf) {
     Promise<bool, std::variant<Consumer, Error> > promise;
     subscribeAsyncV2(topics, subscriptionName, conf,
-                     [promise](std::variant<Consumer, Error> result) { promise.setValue(result); });
+                     [promise](const auto& result) { promise.setValue(result); });
     Future<bool, std::variant<Consumer, Error> > future = promise.getFuture();
 
     std::variant<Consumer, Error> result;
@@ -235,7 +234,7 @@ std::variant<Reader, Error> Client::createReaderV2(const std::string& topic, con
                                                    const ReaderConfiguration& conf) {
     Promise<bool, std::variant<Reader, Error> > promise;
     createReaderAsyncV2(topic, startMessageId, conf,
-                        [promise](std::variant<Reader, Error> result) { promise.setValue(result); });
+                        [promise](const auto& result) { promise.setValue(result); });
     Future<bool, std::variant<Reader, Error> > future = promise.getFuture();
 
     std::variant<Reader, Error> result;