refactor(examples): update semconv usage to ATTR_ exports

[trentm]

Refs: #2377

Note: I did not work through the steps for each example. Clearly many of these examples are out of date and need work. However, there is no way this change will add more breakage, examples/**/package.json include "@opentelemetry/semantic-conventions": "^1.27.0", and version 1.27.0 has the ATTR_SERVICE_NAME export being used.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.37%. Comparing base (e0d2cb2) to head (80efa02).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2819      +/-   ##
==========================================
- Coverage   89.67%   89.37%   -0.31%     
==========================================
  Files         184      179       -5     
  Lines        8946     8636     -310     
  Branches     1834     1794      -40     
==========================================
- Hits         8022     7718     -304     
+ Misses        924      918       -6     

see 6 files with indirect coverage changes

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[JamieDanielson]

Thanks for this. We have a start at describing the updates needed for examples but haven't come back around to it yet. This is still a good change