Add python 3.14 support (#4193)

* try 3.14 in pyramid

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* see what's broken

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* fix pyramid

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* fix pyramid ci

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* fix sqlalchemy

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* fix httpx tests

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* fix pymssql

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* fix grpc tests

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* fix exporter-prometheus-write tests

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* try fastapi fix

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* fix django tests

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* fix aiopg

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* fix aiohttp-client

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* fix django

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* fix aiopg

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* fix httpx

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* fix fastapi

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* fix vertexai

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* fix workflows

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* fix openai-v2

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* fix contributing.md and lint to use py314

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* fix lint

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* Update tox.ini

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* Update instrumentation/opentelemetry-instrumentation-asyncio/tests/test_asyncio_run_coroutine_threadsafe.py

Co-authored-by: Aaron Abbott <aaronabbott@google.com>

* Apply suggestion from @emdneto

* Apply suggestion from @emdneto

* Update tox.ini

* Update tox.ini

* fix lint

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* add changelog

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* add trove classifiers

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* fix

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Signed-off-by: emdneto <9735060+emdneto@users.noreply.github.com>
Signed-off-by: Emídio Neto <9735060+emdneto@users.noreply.github.com>
Co-authored-by: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Co-authored-by: Aaron Abbott <aaronabbott@google.com>