[PATCH v2 3/4] perf test: Suppress optparse deprecation warning with older pylint

[Leo Yan <leo.yan@arm.com>]

Python 3.13 reversed optparse's deprecation, and pylint 3.3.5 removed it
from the deprecated-module list. Perf supports older pylint versions,
so suppress the warning on this import and document the reason. Keep
other deprecated-module diagnostics enabled.

Link: https://docs.python.org/3.13/whatsnew/3.13.html#optparse
Link: https://pylint.readthedocs.io/en/latest/whatsnew/3/3.3/index.html#what-s-new-in-pylint-3-3-5
Fixes: 8a54784e708b ("perf build: Add pylint build tests")
Reported-by: Aishwarya TCV <aishwarya.tcv@arm.com>
Assisted-by: Codex:gpt-6
Signed-off-by: Leo Yan <leo.yan@arm.com>
---
 tools/perf/tests/shell/lib/attr.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/lib/attr.py b/tools/perf/tests/shell/lib/attr.py
index 7f3d5b64b00dd7de45baff4f7d9baff89e003147..523257bcf8e126cb662af589727144bb26cff4d5 100644
--- a/tools/perf/tests/shell/lib/attr.py
+++ b/tools/perf/tests/shell/lib/attr.py
@@ -4,7 +4,8 @@ import configparser
 import os
 import sys
 import glob
-import optparse
+# Pylint before 3.3.5 still treats optparse as deprecated.
+import optparse  # pylint: disable=deprecated-module
 import platform
 import tempfile
 import logging

-- 
2.34.1