Currently, we have taskrun based execution whenever an event occurs a pac taskrun is created and the pac logic is executed through it. but this model has limitation, so we decide to move to controller based execution

So, this means we will have a single controller configure with Apps and Webhooks.

more discussion for the new design can be found here

https://docs.google.com/document/d/15Fm3m1tPZvQsvGLBrEU4jsVSv5F55ISnQFu6zb_eOCI/edit?usp=drive_web&ouid=110214912357629487533

this epic is to have all the related stories for it