[submodule] Update submodule sonic-platform-daemons to the latest HEA…

…D automatically (sonic-net#19326)

#### Why I did it
src/sonic-platform-daemons
```
* 6694d3b - (HEAD -> master, origin/master, origin/HEAD) [xcvrd] Fix issue: do not print error log when module support non-ethernet application (sonic-net#501) (16 minutes ago) [Junchao-Mellanox]
```
#### How I did it
#### How to verify it
#### Description for the changelog