code: func (s *IssueService) UpdateComment(issueID string, comment *Comment) (*Comment, *Response, error) {
  	reqBody := struct {
  		Body string `json:"body"`
  	}{
  		Body: comment.Body,
  	}
  	apiEndpoint := fmt.Sprintf("rest/api/2/issue/%s/comment/%s", issueID, comment.ID)
  	req, err := s.client.NewRequest("PUT", apiEndpoint, reqBody)
  	if err != nil {
  		return nil, nil, err
  	}
  
  	responseComment := new(Comment)
  	resp, err := s.client.Do(req, responseComment)
  	if err != nil {
  		return nil, resp, err
  	}
  
  	return responseComment, resp, nil
  }
docs: // UpdateComment updates the body of a comment, identified by comment.ID, on the issueID.
  //
  // JIRA API docs: https://docs.atlassian.com/jira/REST/cloud/#api/2/issue/{issueIdOrKey}/comment-updateComment