Mute ydb/core/kafka_proxy/ut/unittest.sole chunk in main

[ydbot]

Mute:
ydb/core/kafka_proxy/ut/unittest.sole chunk

Branch:
main

Add line to muted_ya.txt:

ydb/core/kafka_proxy/ut unittest.sole chunk

Owner: TEAM:@ydb-platform/Topics

Read more in mute_rules.md

Summary history:
unittest.sole chunk: Flaky(11-11)->Passed(11-10)->Flaky(11-12)->Passed(11-09) last 1 days, at 2025-11-09:2025-11-12: success_rate 97.5%, p-119, f-3, m-0, s-0, total-122

Test run history: link

More info in dashboard