What should the `influxdb` node be called?

[ct2034]

The node name at runtime is defined by this line https://github.com/ros/diagnostics/blob/7021f83f92251d08c075a31fc5d8ada1928ee247/diagnostic_remote_logging/src/influxdb.cpp#L42C9-L42C17
But come to think of it, I don't like the name a lot anyway. The name influxdb suggests, it is the database itself. What do you think about influxdb_connector or something like that?

Originally posted by @ct2034 in #515 (comment)

What do you think @dwffls ?

[dwffls]

Excuse me for the delay, been a bit busy at work lately.

I think you are right in that influxdb_connector should become the new name.
Reflects the use much better than just influxdb.