[submodule] Update submodule sonic-swss to the latest HEAD automatically (#18214)

#### Why I did it
src/sonic-swss
```
* 8d6aac03 - (HEAD -> 202305, origin/202305) [intfsorch] Enable ipv6 proxy ndp along with proxy arp (#3045) (2 days ago) [Nikola Dancejic]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2024-03-01 19:01:52 +08:00 committed by GitHub
parent cd96613d03
commit 23d5c5af0c
No known key found for this signature in database
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@ -1 +1 @@
Subproject commit 5d91f105079cfe31fe8b65e022598163fcd6db38
Subproject commit 8d6aac035a04af5156ff5a6217c7b27b54598a2c