fix leak in persqueue write session actor (#18226)

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Changelog entry

Fix memory leak in write session

Changelog category

• Bugfix

Description for reviewers

...

[github-actions]

🔴 2025-05-14 15:20:31 UTC The validation of the Pull Request description has failed. Please update the description.

Bugfix requires a linked issue in the changelog entry

[github-actions]

⚪ 2025-05-14 15:22:24 UTC Pre-commit check linux-x86_64-release-asan for 8b3ea25 has started.
⚪ 2025-05-14 15:22:41 UTC Artifacts will be uploaded here
⚪ 2025-05-14 15:25:28 UTC ya make is running...
🟡 2025-05-14 16:36:29 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Details

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
12073	11946	0	29	64	34

⚪ 2025-05-14 16:37:38 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-05-14 16:57:59 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Details

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
161 (only retried tests)	67	0	11	51	32

⚪ 2025-05-14 16:58:07 UTC ya make is running... (failed tests rerun, try 3)
🟡 2025-05-14 17:17:55 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
122 (only retried tests)	35	0	10	45	32

🟢 2025-05-14 17:18:02 UTC Build successful.
🟢 2025-05-14 17:18:28 UTC ydbd size 3.6 GiB changed* by +30.9 KiB, which is < 100.0 KiB vs stable-25-1: OK

ydbd size dash	stable-25-1: fd5ab83	merge: 8b3ea25	diff	diff %
ydbd size	3 912 237 872 Bytes	3 912 269 488 Bytes	+30.9 KiB	+0.001%
ydbd stripped size	1 368 326 000 Bytes	1 368 359 952 Bytes	+33.2 KiB	+0.002%

^{*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]

⚪ 2025-05-14 15:24:00 UTC Pre-commit check linux-x86_64-relwithdebinfo for 8b3ea25 has started.
⚪ 2025-05-14 15:24:42 UTC Artifacts will be uploaded here
⚪ 2025-05-14 15:29:50 UTC ya make is running...
🟡 2025-05-14 16:34:41 UTC Some tests failed, follow the links below. Going to retry failed tests...

Details

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
18893	17602	0	6	1217	68

⚪ 2025-05-14 16:36:29 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-05-14 16:58:20 UTC Some tests failed, follow the links below. Going to retry failed tests...

Details

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
137 (only retried tests)	78	0	1	0	58

⚪ 2025-05-14 16:58:29 UTC ya make is running... (failed tests rerun, try 3)
🟢 2025-05-14 17:19:16 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
112 (only retried tests)	54	0	0	0	58

🟢 2025-05-14 17:19:24 UTC Build successful.
🟢 2025-05-14 17:20:02 UTC ydbd size 2.1 GiB changed* by +5.2 KiB, which is < 100.0 KiB vs stable-25-1: OK

ydbd size dash	stable-25-1: fd5ab83	merge: 8b3ea25	diff	diff %
ydbd size	2 248 979 944 Bytes	2 248 985 312 Bytes	+5.2 KiB	+0.000%
ydbd stripped size	475 951 480 Bytes	475 962 552 Bytes	+10.8 KiB	+0.002%

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