Add test for logging from a span in the opentracing bridge

[tongoss]

#6549

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.0%. Comparing base (787518f) to head (662d858).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #6919   +/-   ##
=====================================
  Coverage   82.9%   83.0%           
=====================================
  Files        261     261           
  Lines      24256   24256           
=====================================
+ Hits       20130   20141   +11     
+ Misses      3751    3740   -11     
  Partials     375     375           

see 2 files with indirect coverage changes

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[dmathieu]

With #6916 being merged, you can't use the internal module anymore and need to use local private methods.

[tongoss]

With #6916 being merged, you can't use the internal module anymore and need to use local private methods.

@dmathieu , I have updated the testing cases accordingly.