Fix memory leak in Query Processor and ProxySQL_Admin::flush_pgsql_variables___database_to_runtime#5037

renecannao merged 2 commits intov3.0sysown/proxysql:v3.0from

v3.0_qp_mem_leak_fixsysown/proxysql:v3.0_qp_mem_leak_fixCopy head branch name to clipboard