[submodule] Update submodule sonic-swss-common to the latest HEAD aut…

…omatically (#21261)

#### Why I did it
src/sonic-swss-common
```
* c872f42 - (HEAD -> master, origin/master, origin/HEAD) Add field for bulk chunk size in flex counter (#950) (3 days ago) [Stephen Sun]
* ceccddc - policer ID_LIST & MAP (#959) (5 days ago) [Shira]
```
#### How I did it
#### How to verify it
#### Description for the changelog