code: private void overrideLocalCanalConfig(String content) {
          try (FileWriter writer = new FileWriter(CommonUtils.getConfPath() + "canal.properties")) {
              writer.write(content);
              writer.flush();
          } catch (Exception e) {
              logger.error(e.getMessage(), e);
          }
      }
docs: 覆盖本地 canal.properties
  
  @param content 远程配置内容文本