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

…omatically (#18903)

#### Why I did it
src/sonic-swss-common
```
* 4b23970 - (HEAD -> master, origin/master, origin/HEAD) [Banner] Added BANNER_MESSAGE table to ConfigDB (#826) (16 hours ago) [SviatoslavBoichuk]
```
#### How I did it
#### How to verify it
#### Description for the changelog