[submodule] Update submodule sonic-stp to the latest HEAD automatically (#22109)

#### Why I did it
src/sonic-stp
```
* 92342f9 - (HEAD -> master, origin/master, origin/HEAD) MSTP Feature - librabry API changes (#56) (33 hours ago) [Divya Kumaran Chandralekha]
* 44b2b0c - MSTP PRS/PIM state machine APIs (#52) (2 days ago) [Divya Kumaran Chandralekha]
* 16e8163 - MSTP PRT/PPM/TCM state machine APIs (#54) (2 days ago) [Divya Kumaran Chandralekha]
* 5bf98bb - Mstp feature - debug APIs (#57) (2 days ago) [Divya Kumaran Chandralekha]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld