Add SRv6 SAI error regex to generic_config_updater loganalyzer ignore list

[Copilot]

• Remove SRv6 SAI regex from conftest.py ignoreRegex list
• Add autouse fixture with ".*ERR syncd[0-9]*#syncd.*" regex to test_srv6.py

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[mssonicbld]

/azp run

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[mssonicbld]

/azp run

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[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[BYGX-wcr]

LGTM

[BYGX-wcr]

PR generated by Copilot, triggered by me.

[ZhaohuiS]

@BYGX-wcr could you please state the reason why just ignore these sai or syncd error syslog for this case?

It found some many syslog in this case.

>               pt_assert(False, failure_message)
E               Failed: Got matched syslog in processes "analyze_logs--<MultiAsicSonicHost bjw2-can-7260-9>" exit code:"1"
E               match: 11
E               expected_match: 0
E               expected_missing_match: 0
E               
E               Match Messages:
E               2026 Mar 23 19:18:30.120361 bjw2-can-7260-9 ERR syncd#syncd: [none] SAI_API_SRV6:_brcm_sai_create_my_sid_entry:448 Device doesnot support SRV6
E               
E               2026 Mar 23 19:18:30.120361 bjw2-can-7260-9 ERR syncd#syncd: :- sendApiResponse: api SAI_COMMON_API_CREATE failed in syncd mode: SAI_STATUS_NOT_SUPPORTED
E               
E               2026 Mar 23 19:18:30.120519 bjw2-can-7260-9 ERR syncd#syncd: :- processQuadEvent: attr: SAI_MY_SID_ENTRY_ATTR_TUNNEL_ID: oid:0x2a000000001795
E               
E               2026 Mar 23 19:18:30.120519 bjw2-can-7260-9 ERR syncd#syncd: :- processQuadEvent: attr: SAI_MY_SID_ENTRY_ATTR_ENDPOINT_BEHAVIOR: SAI_MY_SID_ENTRY_ENDPOINT_BEHAVIOR_UN
E               
E               2026 Mar 23 19:18:30.120519 bjw2-can-7260-9 ERR syncd#syncd: :- processQuadEvent: attr: SAI_MY_SID_ENTRY_ATTR_ENDPOINT_BEHAVIOR_FLAVOR: SAI_MY_SID_ENTRY_ENDPOINT_BEHAVIOR_FLAVOR_USD
E               
E               2026 Mar 23 19:18:30.120769 bjw2-can-7260-9 ERR swss#orchagent: :- create: create status: SAI_STATUS_NOT_SUPPORTED
E               
E               2026 Mar 23 19:18:30.120769 bjw2-can-7260-9 ERR swss#orchagent: :- createUpdateMysidEntry: Failed to create my_sid entry 32:16:0:0:fcbb:bbbb:1::, rv -2
E               
E               2026 Mar 23 19:18:30.120769 bjw2-can-7260-9 ERR swss#orchagent: :- doTaskMySidTable: Failed to create/update my_sid entry for sid 32:16:0:0:fcbb:bbbb:1::
E               
E               2026 Mar 23 19:19:07.850264 bjw2-can-7260-9 ERR swss#orchagent: :- meta_sai_validate_my_sid_entry: virtual router is set to null object id
E               
E               2026 Mar 23 19:19:07.850264 bjw2-can-7260-9 ERR swss#orchagent: :- deleteMysidEntry: Failed to delete my_sid entry rv -5
E               
E               2026 Mar 23 19:19:07.850264 bjw2-can-7260-9 ERR swss#orchagent: :- doTaskMySidTable: Failed to delete my_sid entry for sid 32:16:0:0:fcbb:bbbb:1::