elasticsearch response status code ignored

The status code from ES is ignored here, which hide some errors from ES

kubernetes-event-exporter/pkg/sinks/elasticsearch.go

Lines 174 to 181 in 7bb8052

    
           resp, err := req.Do(ctx, e.client) 
        
           if err != nil { 
        
           	return err 
        
           } 
        
           defer resp.Body.Close() 
        
           _ = resp.Body 
        
           return nil

	resp, err := req.Do(ctx, e.client)
	if err != nil {
	return err
	}

	defer resp.Body.Close()
	_ = resp.Body
	return nil