[submodule] Update submodule sonic-host-services to the latest HEAD automatically (#17248)

#### Why I did it
src/sonic-host-services
```
* 50db9d3 - (HEAD -> master, origin/master, origin/HEAD) Move sonic-host-services-data from sonic-buildimage into this repo (3 hours ago) [Saikrishna Arcot]
* 1a9442f - Replace libpam-cracklib with libpam-pwquality (3 hours ago) [Saikrishna Arcot]
* 31590a1 - Fix diff output in test for Python 3 (3 hours ago) [Saikrishna Arcot]
* cc3e330 - Specify test dependencies under extra_requires (3 hours ago) [Saikrishna Arcot]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld