fix mem leaks

common/cpp/src/http_client/curl_http_client.cpp

common/cpp/src/system_io/system_io_linux.cpp

receiver/src/receiver_statistics.h

receiver/src/request_handler_authorize.cpp

receiver/src/requests_dispatcher.cpp

receiver/src/statistics.cpp

receiver/src/statistics.h

receiver/src/statistics_sender_influx_db.h

receiver/unittests/test_request_handler_authorizer.cpp

...tic/producer_receiver/transfer_single_file/check_linux.sh