[agroal#234] pgagroal-cli reload transfer also log_rotation settings

When issuing a `pgagroal-cli reload` all `log_rotation` related
settings such as `log_rotation_age` and `log_rotation_size` must be
cloned into the reloaded configuration.

This also clone the `log_line_prefix` string to the new "reloaded"
configuration.

Close agroal#234

src/libpgagroal/configuration.c

@@ -2684,6 +2684,9 @@ transfer_configuration(struct configuration* config, struct configuration* reloa
    config->log_connections = reload->log_connections;
    config->log_disconnections = reload->log_disconnections;
    restart_int("log_mode", config->log_mode, reload->log_mode);
+   config->log_rotation_size = reload->log_rotation_size;
+   config->log_rotation_age = reload->log_rotation_age;
+   memcpy(config->log_line_prefix, reload->log_line_prefix, MISC_LENGTH);
    /* log_lock */
 
    config->authquery = reload->authquery;