chore(deps): update dependency python-telegram-bot to v21.5 (#176)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
|
[python-telegram-bot](https://togithub.com/python-telegram-bot/python-telegram-bot)
([changelog](https://docs.python-telegram-bot.org/en/stable/changelog.html))
| `==21.4` -> `==21.5` |
[![age](https://developer.mend.io/api/mc/badges/age/pypi/python-telegram-bot/21.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/pypi/python-telegram-bot/21.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/pypi/python-telegram-bot/21.4/21.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/python-telegram-bot/21.4/21.5?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>python-telegram-bot/python-telegram-bot
(python-telegram-bot)</summary>

###
[`v21.5`](https://togithub.com/python-telegram-bot/python-telegram-bot/blob/HEAD/CHANGES.rst#Version-215)

[Compare
Source](https://togithub.com/python-telegram-bot/python-telegram-bot/compare/v21.4...v21.5)

\============

*Released 2024-09-01*

This is the technical changelog for version 21.5. More elaborate release
notes can be found in the news channel `@pythontelegrambotchannel
<https://t.me/pythontelegrambotchannel>`\_.

## Major Changes

-   Full Support for Bot API 7.9 (:pr:`4429`)
-   Full Support for Bot API 7.8 (:pr:`4408`)

## New Features

- Add `MessageEntity.shift_entities` and `MessageEntity.concatenate`
(:pr:`4376` closes :issue:`4372`)
- Add Parameter `game_pattern` to `CallbackQueryHandler` (:pr:`4353` by
`jainamoswal <https://github.com/jainamoswal>`\_ closes :issue:`4269`)
- Add Parameter `read_file_handle` to `InputFile` (:pr:`4388` closes
:issue:`4339`)

## Documentation Improvements

-   Bugfix for "Available In" Admonitions (:pr:`4413`)
- Documentation Improvements (:pr:`4400` closes :issue:`4446`,
:pr:`4448` by `Palaptin <https://github.com/Palaptin>`\_)
-   Document Return Types of `RequestData` Members (:pr:`4396`)
- Add Introductory Paragraphs to Telegram Types Subsections (:pr:`4389`
by `mohdyusuf2312 <https://github.com/mohdyusuf2312>`\_ closes
:issue:`4380`)
-   Start Adapting to RTD Addons (:pr:`4386`)

## Minor and Internal Changes

- Remove Surplus Logging from `Updater` Network Loop (:pr:`4432` by
`MartinHjelmare <https://github.com/MartinHjelmare>`\_)
- Add Internal Constants for Encodings (:pr:`4378` by `elpekenin
<https://github.com/elpekenin>`\_)
-   Improve PyPI Automation (:pr:`4375` closes :issue:`4373`)
-   Update Test Suite to New Test Channel Setup (:pr:`4435`)
- Improve Fixture Usage in `test_message.py` (:pr:`4431` by `Palaptin
<https://github.com/Palaptin>`\_)
-   Update Python 3.13 Test Suite to RC1 (:pr:`4415`)
-   Bump `ruff` and Add New Rules (:pr:`4416`)

## Dependency Updates

- Update `cachetools` requirement from <5.5.0,>=5.3.3 to >=5.3.3,<5.6.0
(:pr:`4437`)
- Bump `sphinx` from 7.4.7 to 8.0.2 and `furo` from 2024.7.18 to
2024.8.6 (:pr:`4412`)
-   Bump `test-summary/action` from 2.3 to 2.4 (:pr:`4410`)
-   Bump `pytest` from 8.2.2 to 8.3.2 (:pr:`4403`)
-   Bump `dependabot/fetch-metadata` from 2.1.0 to 2.2.0 (:pr:`4411`)
- Update `cachetools` requirement from ~=5.3.3 to >=5.3.3,<5.5.0
(:pr:`4390`)
-   Bump `sphinx` from 7.3.7 to 7.4.7 (:pr:`4395`)
-   Bump `furo` from 2024.5.6 to 2024.7.18 (:pr:`4392`)

</details>

---

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---

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setup.py

@@ -124,7 +124,7 @@ def read(fname, encoding="ascii"):
                 "irc==20.3.0",
             ],
             "telegram": [
-                "python-telegram-bot==21.4",
+                "python-telegram-bot==21.5",
             ],
             "XMPP": [
                 "slixmpp==1.8.5",