ydb/core/wrappers/events: remove unnecessary dependency

[yumkam]

on ydb/core/wrappers/ut_helpers; it is only used in various ut

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

arcadia ci passed;
only purpose of this patch is to reduce list of deps on libxml

[github-actions]

🟢 2025-07-07 16:20:07 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-07-07 16:10:35 UTC Pre-commit check linux-x86_64-relwithdebinfo for 96190f0 has started.
⚪ 2025-07-07 16:10:47 UTC Artifacts will be uploaded here
⚪ 2025-07-07 16:14:24 UTC ya make is running...
🟡 2025-07-07 17:58:07 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
31414	29994	0	6	1364	50

⚪ 2025-07-07 18:01:00 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-07-07 18:13:31 UTC Tests successful.

Test history | Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
502 (only retried tests)	462	0	0	2	38

🟢 2025-07-07 18:13:42 UTC Build successful.
🟢 2025-07-07 18:14:03 UTC ydbd size 2.2 GiB changed* by -18.6 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 9184024	merge: 96190f0	diff	diff %
ydbd size	2 388 108 688 Bytes	2 388 089 616 Bytes	-18.6 KiB	-0.001%
ydbd stripped size	499 679 912 Bytes	499 675 880 Bytes	-3.9 KiB	-0.001%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2025-07-07 16:12:18 UTC Pre-commit check linux-x86_64-release-asan for 96190f0 has started.
⚪ 2025-07-07 16:12:31 UTC Artifacts will be uploaded here
⚪ 2025-07-07 16:16:12 UTC ya make is running...
🟡 2025-07-07 18:39:30 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
16015	15576	0	184	227	28

🟢 2025-07-07 18:41:00 UTC Build successful.
🟢 2025-07-07 18:41:30 UTC ydbd size 3.9 GiB changed* by -96 Bytes, which is <= 0 Bytes vs main: OK

ydbd size dash	main: fff1a83	merge: 96190f0	diff	diff %
ydbd size	4 200 367 888 Bytes	4 200 367 792 Bytes	-96 Bytes	-0.000%
ydbd stripped size	1 455 387 032 Bytes	1 455 386 968 Bytes	-64 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[Copilot]

Pull Request Overview

This PR removes an unnecessary dependency on the ut_helpers module from the events wrapper’s build configuration to streamline the dependency list.

• Deleted ydb/core/wrappers/ut_helpers from ya.make since it’s only used in unit tests elsewhere
• Verified CI still passes with reduced transitive dependencies on libxml

Comments suppressed due to low confidence (1)

ydb/core/wrappers/events/ya.make:19

• Ensure there are no remaining imports or references to ut_helpers in the events wrapper code to avoid build errors or dead code.

        ydb/core/protos