clarify that users should not directly use the log bridge API

[dashpole]

Fixes #5681

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.5%. Comparing base (d284a86) to head (1063bff).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #5837   +/-   ##
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  Coverage   84.5%   84.5%           
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  Files        272     272           
  Lines      22734   22734           
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  Hits       19226   19226           
  Misses      3165    3165           
  Partials     343     343           

[dmathieu]

I wonder if we shouldn't try to emphasize the warning a bit more?

[pellared]

I wonder if we shouldn't try to emphasize the warning a bit more?

I think it is good enough. Moreover, I expect this API would be in future will be used for emitting OTel events without using a bridge in between.