[skip ci]Fix golint error for GetComponentStates in QueryCoord (#11242)

Signed-off-by: cai.zhang <cai.zhang@zilliz.com>

internal/distributed/querycoord/client/client.go

@@ -225,6 +225,7 @@ func (c *Client) Register() error {
 	return nil
 }
 
+// GetComponentStates gets the component states of QueryCoord.
 func (c *Client) GetComponentStates(ctx context.Context) (*internalpb.ComponentStates, error) {
 	ret, err := c.recall(func() (interface{}, error) {
 		client, err := c.getGrpcClient()