[submodule] Update submodule sonic-utilities to the latest HEAD automatically (#19720)

#### Why I did it
src/sonic-utilities
```
* 84cb00a - (HEAD -> master, origin/master, origin/HEAD) Change the default behavior of show ip bgp network (#3447) (11 hours ago) [Changrong Wu]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld