Mark opentracing-shim as stable

[jack-berg]

cc @carlosalberto

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (0a34867) 91.20% compared to head (6692526) 91.20%.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #5371   +/-   ##
=========================================
  Coverage     91.20%   91.20%           
  Complexity     4866     4866           
=========================================
  Files           546      546           
  Lines         14373    14373           
  Branches       1351     1351           
=========================================
  Hits          13109    13109           
  Misses          875      875           
  Partials        389      389           

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[carlosalberto]

cc @tylerbenson for an additional review

[tylerbenson]

There are parts of the code that could use some more comments (for example TracerShim.maybeUnobfuscate. I think the readme could also use a section to document some of the incongruences between the APIs, for example in OTel baggage is immutable.
I don't think these prevent marking it as stable though.

[jack-berg]

@carlosalberto / @jkwatson I think this is ready to go and is low risk given the tiny API surface area, but we lack approvals required to merge for May release.

[carlosalberto]

Thanks for raising this @jack-berg !