chore: pin opentelemetry versions

[chaen]

Should solve the following in all the CIs

tests/test_generic.py:8: in <module>
    from diracx.routers import DIRACX_MIN_CLIENT_VERSION
../.pixi/envs/diracx-routers/lib/python3.11/site-packages/diracx/routers/__init__.py:10: in <module>
    from .factory import DIRACX_MIN_CLIENT_VERSION, create_app, create_app_inner
../.pixi/envs/diracx-routers/lib/python3.11/site-packages/diracx/routers/factory.py:40: in <module>
    from .otel import instrument_otel
../.pixi/envs/diracx-routers/lib/python3.11/site-packages/diracx/routers/otel.py:20: in <module>
    from opentelemetry.instrumentation.fastapi import FastAPIInstrumentor
../.pixi/envs/diracx-routers/lib/python3.11/site-packages/opentelemetry/instrumentation/fastapi/__init__.py:184: in <module>
    from opentelemetry.instrumentation.instrumentor import BaseInstrumentor
../.pixi/envs/diracx-routers/lib/python3.11/site-packages/opentelemetry/instrumentation/instrumentor.py:24: in <module>
    from opentelemetry.instrumentation.dependencies import (
../.pixi/envs/diracx-routers/lib/python3.11/site-packages/opentelemetry/instrumentation/dependencies.py:4: in <module>
    from pkg_resources import (
E   ModuleNotFoundError: No module named 'pkg_resources'

[read-the-docs-community]

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📚 diracx | 🛠️ Build #31948475 | 📁 Comparing 6cd7c4e against latest (ef2162b)

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