Added full support of Bot API 6.4 (#1088)

* Remove warnings about pytest asyncio mode

* Update Bot API to 6.4

* Bump version

* Added changelog

* Update translations

docs/api/methods/unhide_general_forum_topic.rst

@@ -0,0 +1,44 @@
+#######################
+unhideGeneralForumTopic
+#######################
+
+Returns: :obj:`bool`
+
+.. automodule:: aiogram.methods.unhide_general_forum_topic
+    :members:
+    :member-order: bysource
+    :undoc-members: True
+
+
+Usage
+=====
+
+As bot method
+-------------
+
+.. code-block::
+
+    result: bool = await bot.unhide_general_forum_topic(...)
+
+
+Method as object
+----------------
+
+Imports:
+
+- :code:`from aiogram.methods.unhide_general_forum_topic import UnhideGeneralForumTopic`
+- alias: :code:`from aiogram.methods import UnhideGeneralForumTopic`
+
+With specific bot
+~~~~~~~~~~~~~~~~~
+
+.. code-block:: python
+
+    result: bool = await bot(UnhideGeneralForumTopic(...))
+
+As reply into Webhook in handler
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: python
+
+    return UnhideGeneralForumTopic(...)