[submodule] Update submodule sonic-swss to the latest HEAD automatically (sonic-net#677)

#### Why I did it
src/sonic-swss
```
* 64ea58a - (HEAD -> 202412, origin/202412) [hash] add SAI_NATIVE_HASH_FIELD_IPV6_FLOW_LABEL to hash-field map for ECMP/LAG switch hash configuration (sonic-net#40) (6 hours ago) [mssonicbld]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld