[3.x] Bot API 6.0 (#890)

* Base implementation

* Bump license

* Revert re-generated tests

* Fix tests, improved docs

* Remove TODO

* Removed unreachable code

* Changed type of `last_synchronization_error_date`

* Fixed wrongly cleaned code

tests/test_dispatcher/test_dispatcher.py

@@ -82,11 +82,11 @@ class TestDispatcher:
         assert dp.get("foo", 42) == 42
 
         dp["foo"] = 1
-        assert dp._data["foo"] == 1
+        assert dp.workflow_data["foo"] == 1
         assert dp["foo"] == 1
 
         del dp["foo"]
-        assert "foo" not in dp._data
+        assert "foo" not in dp.workflow_data
 
     def test_storage_property(self, dispatcher: Dispatcher):
         assert dispatcher.storage is dispatcher.fsm.storage

tests/test_dispatcher/test_filters/test_chat_member_updated.py

@@ -320,7 +320,7 @@ class TestChatMemberUpdatedStatusFilter:
             "can_be_edited": True,
             "can_manage_chat": True,
             "can_delete_messages": True,
-            "can_manage_voice_chats": True,
+            "can_manage_video_chats": True,
             "can_restrict_members": True,
             "can_promote_members": True,
             "can_change_info": True,