modify version to 4.3.0

Author: qiyuewuyi

src/tablestore/core/impl/ots_constants.hpp

@@ -51,7 +51,7 @@ const std::string kOTSTraceId = "x-ots-sdk-traceid";
 const std::string kOTSHeaderPrefix = "x-ots-";
 
 const std::string kUserAgent = "User-Agent";
-const std::string kSDKUserAgent = "aliyun-tablestore-sdk-cpp98/4.2.1(amd64;)";
+const std::string kSDKUserAgent = "aliyun-tablestore-sdk-cpp98/4.3.0(amd64;)";
 
 // response
 const std::string kOTSRequestId = "x-ots-requestid";