unittests: Fixed leaks in requestor & process_query

tests/process_query.c

@@ -184,6 +184,7 @@ int main(int argc, char *argv[])
 	/* Cleanup. */
 	mp_delete((struct mempool *)mm.ctx);
 	server_deinit(&server);
+	conf_free(conf());
 
 	return 0;
 }

tests/requestor.c

@@ -170,6 +170,7 @@ int main(int argc, char *argv[])
 	/* Cleanup. */
 	mp_delete((struct mempool *)mm.ctx);
 	server_deinit(&server);
+	conf_free(conf());
 
 	return 0;
 }