[submodule] Update submodule sonic-ztp to the latest HEAD automatical…

…ly (sonic-net#16876)

#### Why I did it
src/sonic-ztp
```
* 739470d - (HEAD -> master, origin/master, origin/HEAD) [ZTP] 'config reload' use -f to avoid system checks (#52) (4 hours ago) [Peter Yu]
* 04cd8e8 - [ZTP] bufsize=1 not supported in binary mode (#51) (4 hours ago) [Peter Yu]
```
#### How I did it
#### How to verify it
#### Description for the changelog