impl(o11y): introduce http.response.status_code

[diegomarquezp]

No description provided.

[gemini-code-assist]

Code Review

This pull request implements status code reporting for both gRPC and HTTP transports within OpenTelemetry spans. It introduces a new HTTP status code attribute, adds utility methods in ObservabilityUtils to extract status codes from exceptions based on the transport type, and updates SpanTracer to ensure these attributes are recorded when an attempt finishes. A redundant else if block for Long types was identified in the OpenTelemetry attribute mapping logic.

[gemini-code-assist]

This else if block to handle Long types appears to be redundant. The surrounding code context (line 109, attributesBuilder.put(k, (Long) v)) suggests there is already logic to handle Long values. If so, this new block is unreachable code and should be removed.