[submodule] Update submodule sonic-platform-common to the latest HEAD automatically (#21108)

#### Why I did it
src/sonic-platform-common
```
* e955e58 - (HEAD -> master, origin/master, origin/HEAD) get_error_description should return 'OK' instead of None when there is no error (#518) (18 hours ago) [Kebo Liu]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld