OTLPLogExporter example to not use OTLP-Pipeline builders

[cijothomas]

Opening a PR to show some issues related to : https://github.com/open-telemetry/opentelemetry-rust/issues/1810

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 73.7%. Comparing base (bded598) to head (191684d). Report is 223 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #1811   +/-   ##
=====================================
  Coverage   73.7%   73.7%           
=====================================
  Files        123     123           
  Lines      19634   19634           
=====================================
+ Hits       14481   14482    +1     
+ Misses      5153    5152    -1     

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[cijothomas]

Closing this, as this is already addressed by https://github.com/open-telemetry/opentelemetry-rust/pull/2221