[submodule] Update submodule sonic-swss to the latest HEAD automatically (#24420)

#### Why I did it
src/sonic-swss
```
* 50544954 - (HEAD -> master, origin/master, origin/HEAD) With ZMQ enabled between fpmsyncd to orchagent, default routes are se… (#3979) (34 minutes ago) [venkit-nexthop]
* 6b976e94 - [swss] Support FIPS MACSec POST (#3836) (4 hours ago) [Song Yuan]
* d0b25613 - [fpmsyncd]: Fix SRv6 SID List sharing among prefixes (#3860) (6 hours ago) [Carmine Scarpitta]
* 98198d08 - [Mellanox] Update buffer calculation for platform SN6600 (#3948) (3 days ago) [Jianyue Wu]
* 0e1558e3 - [mclag]: Added marvell-teralynx to port isolation grp support list (#3946) (8 days ago) [Ravi Minnikanti(Marvell)]
```
#### How I did it
#### How to verify it
#### Description for the changelog

Author: mssonicbld