[submodule] Update submodule sonic-swss-common to the latest HEAD automatically (sonic-net#801)

#### Why I did it
src/sonic-swss-common
```
* a8e6118 - (HEAD -> 202412, origin/HEAD, origin/202412) [FC] remove FLEX_COUNTER_DELAY_STATUS_FIELD (sonic-net#982) (#27) (21 hours ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld