Use debug logging instead of info logging for http request logging

[Tomvbe]

Currently we have some logging on incoming and outgoing http messages. For example in LdioHttpIn:

LOGGER.info("POST " + "/%s".formatted(endpoint) + " type:" + type + " length:" + req.headers().contentLength().orElse(0L));

1. This should be debug logging instead of info logging.
2. We should also have this logging on the kafka components.
3. The formatting of these log message can be improved as well. Use one format string and provide all the params.