Support read logs from fluentd/journal log driver

### What is the problem you're trying to solve

For now, we just support one-way write process for fluentd/journal log driver, but in some circumstances, the user may need to use `nerdctl logs` command to fetch the log.

So we can write to the driver destination and a local JSON file for the log driver simultaneously, and the `nerdctl logs` command can fetch the log from the local log file

### Describe the solution you'd like

- [ ] fluentd
- [ ] journal
- [ ] syslog after https://github.com/containerd/nerdctl/issues/1353 @yuchanns

### Additional context

_No response_