[submodule] Update submodule linkmgrd to the latest HEAD automatically (#18449)

#### Why I did it
src/linkmgrd
```
* 7465431 - (HEAD -> 202311, origin/202311) draft (#231) (22 hours ago) [Liu Shilong]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2024-03-23 19:01:17 +08:00 committed by GitHub
parent 5620d6c30b
commit e295afa3b3
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

@ -1 +1 @@
Subproject commit 27aed4037295b4c047c99047303c45a107888f1f
Subproject commit 746543176654fd6c55a4d94147c832d86317b86a