OTLP HTTP Collector fails with error 'unknown field scopeSpans'

[mdisibio]

Describe the bug
Tempo's OTLP HTTP Collector is failing to ingest data from apps using the latest OpenTelemetry instrumentation. The error is {"code":3,"message":"unknown field \"scopeSpans\" in v1.ResourceSpans"}. This is due to the renaming efforts within opentelemetry-proto. OTLP gRPC is unaffected because the protobuf is backwards-compatible (same field ids and layout).

To Reproduce
Steps to reproduce the behavior:

1. Start Tempo (SHA or version)
2. Perform Operations (Read/Write/Others)

Expected behavior

Environment:

• Infrastructure: [e.g., Kubernetes, bare-metal, laptop]
• Deployment tool: [e.g., helm, jsonnet]

Additional Context