Remove async_timeout and update python versions

[xavierforestier]

Summary by Sourcery

Update async timeout handling and modernize supported Python versions.

Enhancements:

• Replace async_timeout usage with asyncio.timeout in RMV API query logic to rely on the standard library.
• Tidy test helper date parsing loops and logging setup for minor style consistency.

CI:

• Update GitHub Actions test matrix to run against Python 3.11 through 3.14 instead of 3.8 through 3.10.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Replaces async_timeout with asyncio.timeout in the RMV API client, updates the GitHub Actions test matrix to newer Python versions, and applies minor Python style cleanups in tests.

Sequence diagram for RMV API query using asyncio.timeout

sequenceDiagram
    participant RMVClient
    participant asyncio
    participant HttpxAsyncClient as httpx.AsyncClient
    participant RMV_API

    RMVClient->>asyncio: timeout(self._timeout)
    activate asyncio
    asyncio->>HttpxAsyncClient: __aenter__()
    activate HttpxAsyncClient
    HttpxAsyncClient->>RMV_API: get(url)
    RMV_API-->>HttpxAsyncClient: response
    HttpxAsyncClient-->>RMVClient: response
    deactivate HttpxAsyncClient
    asyncio-->>RMVClient: __aexit__()
    deactivate asyncio

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File-Level Changes

Change	Details	Files
Replace async_timeout with built-in asyncio.timeout for HTTP requests to the RMV API.	Update the async RMV API query helper to use asyncio.timeout instead of async_timeout.timeout around the httpx.AsyncClient request block Rely on asyncio’s built-in timeout context, removing the external async_timeout dependency implicitly	RMVtransport/rmvtransport.py
Update CI to test against newer Python versions.	Adjust GitHub Actions workflow matrix to run tests on Python 3.11 through 3.14 instead of 3.8 through 3.10	.github/workflows/pythonpackage.yml
Apply minor Python style/modernization tweaks in tests.	Remove unnecessary parentheses in for-loop unpacking in JSON date_hook helpers in tests and common utilities Keep logging configuration and date parsing logic otherwise unchanged	tests/test_bugs.py tests/common.py

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[sourcery-ai]

Hey - I've left some high level feedback:

• Since the workflow now only tests 3.11–3.14 and uses asyncio.timeout, make sure your packaging metadata (e.g., pyproject.toml/setup.cfg classifiers and requires-python) is updated to reflect the new minimum Python version.
• Now that async_timeout has been replaced with asyncio.timeout, remove any remaining async-timeout dependency declarations from your dependency files so they stay in sync with the code.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Since the workflow now only tests 3.11–3.14 and uses asyncio.timeout, make sure your packaging metadata (e.g., pyproject.toml/setup.cfg classifiers and requires-python) is updated to reflect the new minimum Python version.
- Now that async_timeout has been replaced with asyncio.timeout, remove any remaining async-timeout dependency declarations from your dependency files so they stay in sync with the code.

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