Update collector config to use debug exporter

[utpilla]

Changes

• loggingexporter has been marked deprecated in favor of debug exporter in the collector repo. Check this.
• Update the collector config in the examples to use debug exporter instead of loggingexporter
• Remove loggingexporter from integration tests config as it was not being used

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.6%. Comparing base (2ac2b18) to head (ca0a990).

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1876     +/-   ##
=======================================
- Coverage   74.6%   74.6%   -0.1%     
=======================================
  Files        122     122             
  Lines      19952   19952             
=======================================
- Hits       14902   14901      -1     
- Misses      5050    5051      +1     

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