3.9

What's Changed

• [Client] Fix Async Headers by @SentryMan in #757
• Add @Body to resolve ambiguous scalar/collection parameter inferenc… by @rbygrave in #762
• Generate $RequestFactory in avaje-http for request-scoped controllers by @rbygrave in #763
• Make an enum object part of the component schema so it can be reused across different endpoints. by @Tijs-2 in #769
• Add http client otel module, Open Telemetry support for HttpClient by @rob-bygrave in #766

Full Changelog: 3.8...3.9