fix: support opentelemetry-exporter-otlp-proto-http >=1.39.1

[hztBUAA]

Summary

Fixes #4511

• Relaxed version constraints for opentelemetry-api, opentelemetry-sdk, and opentelemetry-exporter-otlp-proto-http from ~=1.34.0 (which restricts to >=1.34.0, <1.35) to >=1.34.0
• This allows users to install newer OpenTelemetry versions (e.g., 1.39.1) needed for proper telemetry export to Langfuse and other OTLP collectors
• The OpenTelemetry API is stable post-1.0 and crewAI uses only standard trace/span/exporter APIs with no version-specific features, so newer versions are fully compatible

Test Plan

• All 28 telemetry tests pass with the relaxed constraints
• uv lock resolves successfully
• Verified crewAI only uses stable OpenTelemetry APIs (trace, TracerProvider, BatchSpanProcessor, OTLPSpanExporter, Span, Status, StatusCode, Resource, SERVICE_NAME, SpanExportResult) that have not changed between 1.34 and 1.39.1

---

Note

Low Risk
Dependency constraint loosening only; risk is limited to potential incompatibilities with newer OpenTelemetry versions at install/runtime.

Overview
Relaxes version constraints for opentelemetry-api, opentelemetry-sdk, and opentelemetry-exporter-otlp-proto-http from ~=1.34.0 to >=1.34.0 so newer OpenTelemetry releases can be installed.

Updates uv.lock accordingly to reflect the broadened dependency range; no runtime code changes are included.

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Missing upper bound on OpenTelemetry version constraints

Low Severity

The three opentelemetry-* constraints were changed to >=1.34.0 with no upper bound, unlike other comparable dependencies in this project (openai>=1.83.0,<3, pyjwt>=2.9.0,<3, litellm>=1.74.9,<3) which all cap at the next major version. If OpenTelemetry ever publishes a 2.x with breaking changes, fresh installs of crewai could resolve to an incompatible version. Using >=1.34.0,<2 would preserve the intended flexibility while protecting against future major-version breaks.

Additional Locations (1)

• uv.lock#L1211-L1214

 

[hztBUAA]

Thanks for the review and feedback. I am following up on this PR now and will either push the requested changes or reply point-by-point shortly.

[hztBUAA]

Quick follow-up: I am reviewing the feedback and will update this PR shortly.