Fix OpenTelemetry dependency conflicts with autogen-core

[teocns]

Problem

Users attempting to use agentops alongside autogen-core==0.4.0 encounter dependency resolution errors due to conflicting OpenTelemetry version requirements. This occurs because:

• agentops supports Python ≥3.9 and uses OpenTelemetry 1.22.0
• autogen-core==0.4.0 requires Python ≥3.10 and needs OpenTelemetry ≥1.27.0

Solution

Added version-specific OpenTelemetry constraints in pyproject.toml to handle both scenarios:

• For Python 3.9: Pin OpenTelemetry packages to 1.22.0 (maintaining original behavior)
• For Python ≥3.10: Allow OpenTelemetry ≥1.27.0 (compatible with autogen-core)

This ensures:

1. Python 3.9 users get our tested OpenTelemetry versions
2. Python ≥3.10 users can use agentops alongside autogen-core without conflicts

Testing

Verified dependency resolution works in both scenarios:

• Python 3.9: Successfully installs with OpenTelemetry 1.22.0
• Python 3.10 + autogen-core: Successfully upgrades to OpenTelemetry 1.27.0

No changes to core functionality or API.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Flag	Coverage Δ
unittests	37.41% <ø> (ø)

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[teocns]

tested this with python 3.9 and 3.13