[OTEL] Improve span operation/description generation

[AbhiPrasad]

Currently our span transformation from otel -> sentry (and generation of span operation/description) works relatively well for http and db spans, but could be improve for other span types. This is a tracking issue to record various improvements we could make to this with the intention to improve our various demos.

In the future we'll be bringing this to Relay - but step by step!

Node

• [x] We should set otel.kind to be a string instead of an integer: https://sentry-sdks.sentry.io/performance/otel-demo-paymentservice:d8ed7fb857b34878b032386ef5efb665 https://github.com/getsentry/sentry-javascript/pull/7182

Go

• [ ] Re-evaluate how we set operation/description for messaging spans: https://sentry-sdks.sentry.io/performance/otel-demo-checkoutservice:3a93068eca0d4acb9c7865f68ba5183f

• [ ] Set better http.client description: https://sentry-sdks.sentry.io/performance/otel-demo-checkoutservice:3a93068eca0d4acb9c7865f68ba5183f

• [x] ~Otel context does not appear for some events: https://sentry-sdks.sentry.io/performance/otel-demo-productcatalogservice:79647993367f4ef2995bf815e1e8e0c7~ Should be fixed by https://github.com/getsentry/sentry-go/pull/599, https://github.com/getsentry/sentry-go/pull/605

Java

• [ ] We should set rpc span operation: https://sentry-sdks.sentry.io/performance/otel-demo-adservice:f42846606929401c9b9f4cfb0fff4724/ https://github.com/getsentry/sentry-java/issues/2540

Ruby

• [ ] We should use template.render for Sinatra templates: https://sentry-sdks.sentry.io/performance/otel-demo-emailservice:93ab62e7d4ac4eb0994a0976e565cf23 (could we generalize to other template rendering?)

Python

• [ ] Set rpc span operation: https://sentry-sdks.sentry.io/performance/otel-demo-recommendationservice:365904f069654d7fa3915df69d3c08bc