[submodule] Update submodule sonic-platform-common to the latest HEAD automatically (sonic-net#18259)

#### Why I did it
src/sonic-platform-common
```
* 29544ed - (HEAD -> 202305, origin/202305) Certain VDM fields not populating after encountering KeyError on 400ZR optics (sonic-net#442) (10 hours ago) [mihirpat1]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld