[202505][Log analyzer] Ignore lldp failed with 500 server error log (sonic-net#20058)

To ignore LLDP-related error logs in the log analyzer—such as those shown below—which are observed only on 512-port devices and have no functional impact.
```
2025 Aug  2 00:04:20.447956 str5-7060x6-512-3 ERR container: docker cmd: stop for lldp failed with 500 Server Error for http+docker://localhost/v1.43/containers/5ff64ad7a6bee49abdc2aee23b458ebfdbf457e0cecc8f5f6550d0c11eddad9a/stop: Internal Server Error ("cannot stop container: 5ff64ad7a6bee49abdc2aee23b458ebfdbf457e0cecc8f5f6550d0c11eddad9a: tried to kill container, but did not receive an exit event")
```

Ignore lldp error log in loganalyzer.

Verify it locally.

Signed-off-by: zitingguo-ms [email protected]

Author: Gfrom2016

ansible/roles/test/files/tools/loganalyzer/loganalyzer_common_ignore.txt

@@ -366,3 +366,6 @@ r, ".* ERR syncd#syncd: :- process_on_fdb_event: FDB notification was not sent s
 
 # https://github.com/sonic-net/sonic-mgmt/issues/19790
 r, ".* ERR syncd#syncd: .* SAI_API_SWITCH:sai_query_stats_capability:\d+ stats capablity not supported for object.*"
+
+# Ignore lldp error log, don't have real impact
+r, ".* ERR container: docker cmd: stop for lldp failed with 500 Server Error.*"