[submodule] Update submodule linkmgrd to the latest HEAD automatically (#15546)

#### Why I did it
src/linkmgrd
```
* 4bda49b - (HEAD -> master, origin/master, origin/HEAD) [actions] Support Semgrep by Github Actions (#210) (7 hours ago) [Mai Bui]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2023-06-20 16:32:57 +08:00 committed by GitHub
parent b211227dce
commit ac0c18b3fd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -1 +1 @@
Subproject commit 18640651da3a2328ac771009777dbc9c3d9c8a26
Subproject commit 4bda49bd71acccb644293da662a9ac937ddd6e7a