[submodule] Update submodule sonic-host-services to the latest HEAD automatically (#18354)

#### Why I did it
src/sonic-host-services
```
* 6fce478 - (HEAD -> master, origin/master, origin/HEAD) Remove UpdateGraphService feature (#105) (2 hours ago) [ganglv]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2024-03-13 19:01:17 +08:00 committed by GitHub
parent 80448380e6
commit 86a9ab6a7b
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@ -1 +1 @@
Subproject commit 970e7b34dec888c4f32a728146cba27ddafb37ba
Subproject commit 6fce4781da508709f11be595e3c7048ffd3138cb