Added full support of the Bot API 9.4 (#1761)

* Bump API schema to version 9.4, add new object types, methods, and properties.

* Add tests for `ChatOwnerChanged` and `ChatOwnerLeft` message types

* Add tests for `GetUserProfileAudios`, `RemoveMyProfilePhoto`, and `SetMyProfilePhoto` methods

* Bump version

* Update Makefile variables and refactor `test_get_user_profile_audios.py`

* Document new features and updates from Bot API 9.4 in changelog

* Add `ButtonStyle` enum to represent button styles in the Telegram API

* Fix review issues from PR #1761

- Remove stray '-' artifact from GameHighScore docstring and butcher schema
- Fix Makefile reformat target scope inconsistency (ruff check --fix)
- Fix ButtonStyle enum source URL (#chat -> #inlinekeyboardbutton)
- Add User.get_profile_audios() shortcut method (parallel to get_profile_photos)
- Test ChatOwnerLeft with new_owner=None (edge case)
- Add VideoQuality type and Video.qualities nesting tests
- Add User.get_profile_audios() test

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Revert "Fix review issues from PR #1761"

This reverts commit 2184e98988.

* Update source links for `ButtonStyle` documentation to reflect accurate API references

* Fix review issues from PR #1761 (#1762)

* Fix review issues from PR #1761

- Remove stray '-' artifact from GameHighScore docstring
- Fix Makefile reformat target scope inconsistency (ruff check --fix)
- Add User.get_profile_audios() shortcut method (parallel to get_profile_photos)
- Test ChatOwnerLeft with new_owner=None (edge case)
- Add VideoQuality type and Video.qualities nesting tests
- Add User.get_profile_audios() test

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Address review comments: use fixture and variables in tests, add changelog

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* Address review follow-ups for PR #1762

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

* Reformat code

* Shut up, ruff

---------

Co-authored-by: latand <latand666@gmail.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: Kostiantyn Kriuchkov <36363097+Latand@users.noreply.github.com>

docs/api/methods/remove_my_profile_photo.rst

@@ -0,0 +1,45 @@
+####################
+removeMyProfilePhoto
+####################
+
+Returns: :obj:`bool`
+
+.. automodule:: aiogram.methods.remove_my_profile_photo
+    :members:
+    :member-order: bysource
+    :undoc-members: True
+    :exclude-members: model_config,model_fields
+
+
+Usage
+=====
+
+As bot method
+-------------
+
+.. code-block::
+
+    result: bool = await bot.remove_my_profile_photo(...)
+
+
+Method as object
+----------------
+
+Imports:
+
+- :code:`from aiogram.methods.remove_my_profile_photo import RemoveMyProfilePhoto`
+- alias: :code:`from aiogram.methods import RemoveMyProfilePhoto`
+
+With specific bot
+~~~~~~~~~~~~~~~~~
+
+.. code-block:: python
+
+    result: bool = await bot(RemoveMyProfilePhoto(...))
+
+As reply into Webhook in handler
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: python
+
+    return RemoveMyProfilePhoto(...)