[submodule] Update submodule sonic-host-services to the latest HEAD automatically (sonic-net#20746)

#### Why I did it
src/sonic-host-services
```
* ff73070 - (HEAD -> master, origin/master, origin/HEAD) Add execute_reboot dbus_interface (sonic-net#164) (4 days ago) [Vasundhara Volam]
* fec6080 - DBUS API for GNOI System.SetPackage (sonic-net#171) (4 days ago) [Dawei Huang]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld