Close the raft_io implementation

Signed-off-by: Cole Miller <[email protected]>

src/server.c

@@ -191,11 +191,12 @@ void dqlite__close(struct dqlite_node *d)
 	rv = sem_destroy(&d->handover_done);
 	(void)rv;
 	fsm__close(&d->raft_fsm);
-	// TODO assert rv of uv_loop_close after fixing cleanup logic related to
-	// the TODO above referencing the cleanup logic without running the
-	// node. See https://github.com/canonical/dqlite/issues/504.
-	uv_loop_close(&d->loop);
+	raft_uv_close(&d->raft_io);
 	raftProxyClose(&d->raft_transport);
+	/* TODO assert rv of uv_loop_close after fixing cleanup logic related to
+	 * the TODO above referencing the cleanup logic without running the
+	 * node. See https://github.com/canonical/dqlite/issues/504. */
+	uv_loop_close(&d->loop);
 	registry__close(&d->registry);
 	sqlite3_vfs_unregister(&d->vfs);
 	VfsClose(&d->vfs);