chore: add discussion issue type

[dyladan]

Which problem is this PR solving?

• Issues like Harden AsyncHooksScopeManager regarding faulty use of AsyncResources #591 create feature requests where they would prefer to open discussions

[codecov-io]

Codecov Report

Merging #592 into master will increase coverage by 0.1%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master     #592     +/-   ##
=========================================
+ Coverage   91.76%   91.87%   +0.1%     
=========================================
  Files         169      169             
  Lines        8090     8206    +116     
  Branches      716      719      +3     
=========================================
+ Hits         7424     7539    +115     
- Misses        666      667      +1

Impacted Files	Coverage Δ
...ages/opentelemetry-plugin-http/test/utils/utils.ts	33.33% <0%> (-26.67%)	⬇️
...entelemetry-exporter-jaeger/test/transform.test.ts	100% <0%> (ø)	⬆️
packages/opentelemetry-tracing/src/config.ts	100% <0%> (ø)	⬆️
packages/opentelemetry-tracing/src/utility.ts	100% <0%> (ø)	⬆️
...telemetry-plugin-grpc/test/utils/assertionUtils.ts	100% <0%> (ø)	⬆️
packages/opentelemetry-tracing/test/Span.test.ts	100% <0%> (ø)	⬆️
...ry-tracing/test/export/SimpleSpanProcessor.test.ts	100% <0%> (ø)	⬆️
.../opentelemetry-exporter-jaeger/test/jaeger.test.ts	100% <0%> (ø)	⬆️
...ry-tracing/test/export/ConsoleSpanExporter.test.ts	100% <0%> (ø)	⬆️
...ntelemetry-tracing/test/MultiSpanProcessor.test.ts	100% <0%> (ø)	⬆️
... and 4 more

[OlivierAlbertini]

Nice!