Refactor logs exported object to match proto

[ocelotl]

Considering that logs is still underscore-prefixed, would this be a good opportunity to refactor the exported object to match the OTLP log proto as we did for metrics?

Originally posted by @ocelotl in #2781 (comment)

[sumit-158]

Hi, @srikanthccv can I work on this? If yes, can you please let me know what exactly I have to do?

[srikanthccv]

@sumit-158 this may not really be the good first issue so I am go remove that tag so I would suggest picking some different good first issue to get you familiar with project.

[xrmx]

Closing as dup of #4313