[submodule][202412] Update submodule sonic-platform-common to the latest HEAD automatically (sonic-net#1036)

#### Why I did it
src/sonic-platform-common
```
* 7aadc13 - (HEAD -> 202412, origin/202412) Merge pull request sonic-net#77 from prgeor/amph-bp (10 hours ago) [Riff]
* b1ab4e6 - Support for Custom Amphenol 800G Backplane catridge (sonic-net#555) (11 hours ago) [Prince George]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld