feat: pass event object based on listeners signature

[artem30801]

Pull Request Type

• Feature addition
• Bugfix
• Documentation update
• Code refactor
• Tests improvement
• CI/CD pipeline enhancement
• Other: [Replace with a description]

Description & changes

Event object is now passed (or not) based on whether there are any parameters in listener

Test Scenarios

Tested on my bot and with test script - both as standalone function listeners and as extension methods

Python Compatibility

• I've ensured my code works on Python 3.10.x
• I've ensured my code works on Python 3.11.x

Checklist

• I've run the pre-commit code linter over all edited files
• I've tested my changes on supported Python versions
• I've added tests for my code, if applicable
• I've updated / added documentation, where applicable

[LordOfPolls]

Purely because I'm certain we are going to get people saying "hOw Do I gEt ThE EvEnT" can you make the listener throw a warning if an event that would normally have a Param (ie any apart from startup and ready) don't on instantiation?

[LordOfPolls]

Also, would it be worth moving the inspect call to the listeners instantiation too, as inspect is very expensive, and this is a high traffic part of the lib

[silasary]

That's a lot nicer looking 😄