Update dependency python-telegram-bot to v21.9

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
python-telegram-bot (changelog)	21.8 -> 21.9

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Release Notes

python-telegram-bot/python-telegram-bot (python-telegram-bot)

v21.9

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Released 2024-12-07

This is the technical changelog for version 21.9. More elaborate release notes can be found in the news channel @pythontelegrambotchannel <https://t.me/pythontelegrambotchannel>_.

Major Changes

• Full Support for Bot API 8.1 (:pr:4594 closes :issue:4592)

Minor Changes

• Use MessageLimit.DEEP_LINK_LENGTH in helpers.create_deep_linked_url (:pr:4597 by nemacysts <https://github.com/nemacysts>_)
• Allow Sequence Input for allowed_updates in Application and Updater Methods (:pr:4589 by nemacysts <https://github.com/nemacysts>_)

Dependency Updates

• Update aiolimiter requirement from ~=1.1.0 to >=1.1,<1.3 (:pr:4595)
• Bump pytest from 8.3.3 to 8.3.4 (:pr:4596)
• Bump codecov/codecov-action from 4 to 5 (:pr:4585)
• Bump pylint to v3.3.2 to Improve Python 3.13 Support (:pr:4590 by nemacysts <https://github.com/nemacysts>_)
• Bump srvaroa/labeler from 1.11.1 to 1.12.0 (:pr:4586)

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