Signed-off-by: Nazarii Hnydyn <nazariig@mellanox.com>

…for extra entries added by generic patcher (sonic-net#977)

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### Description of PR
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Summary:
When patching the DUT to remove t0 peers, the test fails the DB comparison due to extra entries being added to APP_DB.

These entries only get added when generic patcher in SONiC (`config apply-patch`) is used to remove t0 from the DUT.

Ideally this should be fixed in `config apply-patch` code. This PR is a workaround for the issue since the extra entries are harmless and does not get used.

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
- [x] msft_202412
- [x] 202505

### Approach
#### What is the motivation for this PR?
`configlet/test_add_rack.py` is failing.

#### How did you do it?
Adding extra entries to ignore. These entries seems to be harmless and not used. However it is not understood why it is being added by `config apply-patch`.

Again, ideally this should be fixed in `config apply-patch` code. This PR is a workaround for the issue since the extra entries are harmless and does not get used.

#### How did you verify/test it?
Test no longer fails

#### Any platform specific information?
Broadcom platform is used for testing.

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

### Documentation
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(If it's a new feature, new test case)
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Link to the wiki page?
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As part of this commit and previous commit ff6cb6c
sonic-utilities submodule for 201911 has been updated to take following
changes:

 Add support for QSFP-DD cables on 'show' command (sonic-net#989)
 [show] Fix for 'trunk' PortChannel reported as 'routed' port (sonic-net#1002)
Enable HW watchdog before fast-reboot (sonic-net#977)
 [filter-fdb] Check VLAN Presence When Filter FDB (sonic-net#957) (sonic-net#975)
[filter-fdb] Fix For Vlan Defined With No CIDR (sonic-net#976)
 [show/config]: combine feature and container feature cli (sonic-net#1015)

```
*   d849917 (HEAD -> user/r12f/merge-202412, origin/user/r12f/merge-202412, internal-202412) r12f 260209:0619 - Merge remote-tracking branch 'azure/202412' into internal-202412
|\
| * c4c429c (azure/202412) mssonicbld 260209:0115 - [action] [PR:21843] Fix test_bgp_suppress_fib.py flakiness on scale topos (sonic-net#1011)
| * 46503f1 Mark Xiao 260205:1058 - [202412] Fix test_acl.py [ipv6-ingress-uplink->downlink-*] cases for v6 topo (sonic-net#942)
| * b6c58d4 mssonicbld 260130:1215 - [action] [PR:21772] Fix test_bgp_suppress_fib.py for v6 topos (sonic-net#985)
| * e762451 mssonicbld 260130:1016 - [action] [PR:21762] Fix test_disk_exhaustion.py for v6 topos (sonic-net#983)
| * 02cadbb mssonicbld 260130:1016 - [action] [PR:21771] Fix test_bgp_bounce.py for v6 topos (sonic-net#984)
| * 7eab3e7 Priyansh 260129:1437 - [202412] Fix/nonlinear dataplane downtime (sonic-net#982)
| * de89a46 mssonicbld 260130:0616 - [action] [PR:21143] configlet/test_add_rack.py Add comparison ignore for extra entries added by generic patcher (sonic-net#977)
| * c731442 mssonicbld 260130:0616 - [action] [PR:21647] Remove test_route_flow_counter.py xfail for v6 topos (sonic-net#979)
| * 0ff3ecc mssonicbld 260130:0116 - [action] [PR:21717] [BGP][test_bgp_session.py::test_bgp_session_interface_down] - Increase BGP Session State Timeout Window when restarting SWSS Container (sonic-net#978)
| * e0a408c Mark Xiao 260129:0914 - [202412] Fix fib/test_fib.py test_vxlan_hash [ipv6-*] (sonic-net#971)
| * 51b0525 mssonicbld 260124:0615 - [action] [PR:21523] Feature/route programming data (sonic-net#974)
| * 2bb2a53 mssonicbld 260124:0615 - [action] [PR:21939] Fix/nonlinear high nexthop dataplane downtime (sonic-net#975)
| * 1fe73bc Mark Xiao 260123:1323 - [202412] Fix setup_interfaces fixture and related bgp tests for v6 topo (sonic-net#941)
| * fda4ac2 Chuan Wu 260124:0520 - Enhance PTF function at scale testbed (sonic-net#913)
| * e8edcae gshemesh2 260123:2317 - Manual cherry-pick PR: Adjust test_bgpmon.py to handle running over ipv6 only topologies sonic-net#21377 (sonic-net#888)
| * 24b3dc7 gshemesh2 260123:2313 - Manual cherry-pick of PR: Adjusting test_stress_arp is it can handle cases of ipv6-only topologies . sonic-net#20932 (sonic-net#923)
```

----
#### AI description  (iteration 1)
#### PR Classification
This pull request is a feature enhancement that adds and refines IPv6 compatibility across multiple BGP, ACL, and related test modules.

#### PR Summary
The changes extend the testing framework and helper utilities to support IPv6-only and dual-stack environments by conditionally switching commands, packet generation, and route verifications.
- `tests/bgp/test_bgpmon.py` and `tests/bgp/test_bgp_update_timer.py`: Updated function signatures and logic to construct, verify, and clean up IPv6 routes and packets (e.g., using /64 and /128 prefixes).
- `tests/bgp/test_bgp_suppress_fib.py` and `tests/bgp/test_bgp_peer_shutdown.py`: Modified commands and packet filters to support IPv6 addressing and proper neighbor session handling.
- `tests/common/...` files and generators: Integr...