[submodule] Update submodule sonic-platform-daemons to the latest HEAD automatically (#18103)

#### Why I did it
src/sonic-platform-daemons
```
* 121b338 - (HEAD -> 202311, origin/202311) Unable to retrieve media settings with just Vendor name (#419) (10 hours ago) [mihirpat1]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2024-02-16 16:33:06 +08:00 committed by GitHub
parent dcc5a162ec
commit e54c5b4b98
No known key found for this signature in database
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@ -1 +1 @@
Subproject commit dbaa0797a90868ace82b8a3476882b7bfb178416
Subproject commit 121b3381a89dc11045ad6654937dcc2c42865f6a