GraphQL: Report multiple query errors

[marcotc]

Change log entry
GraphQL query errors are now reported as Span Events. This includes support for multiple errors, if present.

How to test the change?
All changes are tested.

[datadog-datadog-prod-us1]

Datadog Report

Branch report: graphql-error-event
Commit report: d917334
Test service: dd-trace-rb

✅ 0 Failed, 22046 Passed, 1459 Skipped, 5m 7.94s Total Time

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 97.56098% with 2 lines in your changes missing coverage. Please review.

Project coverage is 97.75%. Comparing base (28675b6) to head (d917334).

Files with missing lines	Patch %	Lines
...b/datadog/tracing/contrib/graphql/unified_trace.rb	98.14%	1 Missing ⚠️
...cing/contrib/graphql/support/application_schema.rb	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4177      +/-   ##
==========================================
- Coverage   97.76%   97.75%   -0.01%     
==========================================
  Files        1351     1351              
  Lines       81733    81789      +56     
  Branches     4147     4149       +2     
==========================================
+ Hits        79904    79955      +51     
- Misses       1829     1834       +5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-11-30 00:41:05

Comparing candidate commit d917334 in PR branch graphql-error-event with baseline commit 28675b6 in branch master.

Found 2 performance improvements and 0 performance regressions! Performance is the same for 29 metrics, 2 unstable metrics.

scenario:line instrumentation - targeted

• 🟩 throughput [+13000.757op/s; +13666.466op/s] or [+6.872%; +7.224%]

scenario:method instrumentation

• 🟩 throughput [+18322.498op/s; +19148.578op/s] or [+9.172%; +9.586%]