… docker-sonic-mgmt (sonic-net#779)

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### Description of PR
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Summary:
Fixes # (issue)

### Type of change

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- [x] Bug fix
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- [ ] Bug fix
- [ ] Testbed and Framework(new/improvement)
- [ ] New Test case
 - [ ] Skipped for non-supported platforms
- [ ] Test case improvement

### Back port request
- [ ] 202205
- [ ] 202305
- [ ] 202311
- [ ] 202405
- [ ] 202411
- [ ] 202505

### Approach
#### What is the motivation for this PR?
To support docker-sonic-mgmt based on Ubuntu 24.04, the setup-container.sh needs some minor improvements:

#### How did you do it?
1. The Ubuntu 24.04 docker image as account "ubuntu" by default. Its uid could conflict with the user's uid. This change added code to best effort deleting this default "ubuntu" account.
2. In old docker-sonic-mgmt, python3 is installed in virtual environment. In 2024, the docker-sonic-mgmt was updated to install python3 in global environment. It's no longer necessary to hack the virtual environment. This change adjusted the sequence of conditions for hacking venv, so that the code can fail faster to skip this step. In the future, this piece of code should can be deleted.

#### How did you verify/test it?
Use the updated script to setup sonic-mgmt container use both old and new docker-sonic-mgmt images.

#### Any platform specific information?

#### Supported testbed topology if it's a new test case?

### Documentation
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…ing shutdown (sonic-net#6581)

Remove unregisterMessageHandler from NetMsgRegistrar thread (sonic-net#779)

…nch (sonic-net#2526)

* [submodule 201811] advance sairedis and swss submodule for 201811 branch

Submodule src/sonic-sairedis 60f97c3..bdb0074:
  > Add more information on failed map sizes (sonic-net#416)
  > Add WRED specific comparison logic (sonic-net#413)
  > Initialize notification queue pointer before switch create (sonic-net#411)
  > Add log info for not matching SG/IPG/QUEUES (sonic-net#409)
  > Add support for any number of ports in virtual switch using lane map (sonic-net#407)

Submodule src/sonic-swss 85f6322..65a0256:
  > Increase the watermark polling interval to 10s (sonic-net#777)
  > [vstest]: fix test_port_an_warm.py test (sonic-net#779)
  > [wartermarkorch] Fix repeated m_pg_ids and m_unicast_queue_ids add up issue (sonic-net#752)
  > [teammgrd] Fix inconsistent port admin status (sonic-net#755)
  > Remove AclTableGroup upon removal of port/lag/vlan (sonic-net#751)


Signed-off-by: Ying Xie <ying.xie@microsoft.com>

* [submodule] advance sonic-swss submodule

Submodule src/sonic-swss 65a0256..bf21ee3:
  > On a routing vlan, the neighbor entry in the /31 subnet is not added … (sonic-net#784)
  > portsorch ports init done flag should means buffer, autoneg, speed, m… (sonic-net#747) (sonic-net#783)

Signed-off-by: Ying Xie <ying.xie@microsoft.com>