How to fix InRelease’ changed its ‘Suite’ value from ‘stable’ to ‘oldstable’

Fix for

To fix this error:
N: Repository ‘http://raspbian.raspberrypi.org/raspbian buster InRelease’ changed its ‘Suite’ value from ‘stable’ to ‘oldstable’

sudo nano /etc/apt/sources.list.d/raspi.list

Add this at the end:

deb https://archive.raspberrypi.org/debian/ bullseye main

Save and exit

Then try to update the system

sudo apt-get update

It should be okey.