[submodule] Update submodule sonic-platform-common to the latest HEAD automatically (#18260)

#### Why I did it
src/sonic-platform-common
```
* 56921d8 - (HEAD -> master, origin/master, origin/HEAD) File system based sensors implementation for voltage and current sensors (#426) (21 hours ago) [Mridul Bajpai]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2024-03-05 19:01:26 +08:00 committed by GitHub
parent 0c44d3ddff
commit 10ec32cbe8
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

@ -1 +1 @@
Subproject commit 3d354047c8f0b26228fcdf3d5bdceca1eebf5744
Subproject commit 56921d80e42971f2579115f26c5194b9e0ecbc05