[submodule] Update submodule linkmgrd to the latest HEAD automatically (#18432)

#### Why I did it
src/linkmgrd
```
* 27aed40 - (HEAD -> 202311, origin/202311) [active-standby] reset mux probing backoff factor in link flaps (#245) (4 hours ago) [Jing Zhang]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2024-03-22 19:01:35 +08:00 committed by GitHub
parent f767e4161a
commit aa74566df6
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194

@ -1 +1 @@
Subproject commit 1f5fcfd21b112c4765d20691c8c4bf8d2842f0c2
Subproject commit 27aed4037295b4c047c99047303c45a107888f1f