Also adapt the bot tests for this change + removes debug prints + fix few tests

… time

Also change the scope of some fixtures

This mainly does two things:
- Leverages the session bot while making new applications, this eliminates all calls to get_me
- `test_signal_handler` was optimized to use `loop.call_later` which eliminates the chance where we could get a TaskException not retrieved error, which often fatally crash pytest.

These two changes thus reduce flakyness and improves speed.

The last commit addresses the root cause of its addition, so now we don't need this :)

This was done as when running pytest with -x, this error is emitted. Not doing this seems to fix the problem. However this could backfire on python versions older than 3.10.6

this is based on whether the test calls get_me indirectly or not

…tinefunction

The limitation of that function is fixed by using the `__wrapped__` attribute

…d/create_task

let's take full advantage of the lib now being async

includes removing unused params, removing unnecessary monkeypatch.delattr's, missing import, beautification, etc

…llback tests

This means we can now move those methods back to TestBotNoReq, since they did not make any request apart from delete_webhook()

The tests are roughly arranged as follows:

- test_slot_behaviour
- test de_json/to_dict
- test init
- test equality
- test wrong init
- etc

Also add a missing test_to_dict in user.py

specially on python 3.7. The xdist_group markers are kept so we can use them locally

Also increase loop.call_later call by 0.1 seconds in test_signal_handlers