Fix actor system usage after it was freed (#7316)

[UgnineSirdis]

Co-authored-by: Semyon Danilov samvimes@yandex.ru
(cherry picked from commit 652be9a)

Changelog entry

Problem affects test actor system

Changelog category

• Not for changelog (changelog entry is not required)

Additional information

...

[github-actions]

⚪ 2024-08-02 09:25:04 UTC Pre-commit check for 3195cb3 has started.
⚪ 2024-08-02 09:27:27 UTC Build linux-x86_64-release-asan is running...
🟢 2024-08-02 09:49:27 UTC Build successful.
⚪ 2024-08-02 09:49:44 UTC Tests are running...
🔴 2024-08-02 10:43:58 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
8006	7994	0	4	0	8

🟢 2024-08-02 10:44:38 UTC ydbd size 5.5 GiB changed* by -96 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 2f21060	merge: 3195cb3	diff	diff %
ydbd size	5 905 093 592 Bytes	5 905 093 496 Bytes	-96 Bytes	-0.000%
ydbd stripped size	1 480 537 632 Bytes	1 480 537 568 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}

[github-actions]

⚪ 2024-08-02 09:25:06 UTC Pre-commit check for 3195cb3 has started.
⚪ 2024-08-02 09:27:31 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-08-02 09:33:03 UTC Build successful.

[github-actions]

⚪ 2024-08-02 09:26:53 UTC Pre-commit check for 3195cb3 has started.
⚪ 2024-08-02 09:29:18 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-08-02 10:06:58 UTC Build successful.
⚪ 2024-08-02 10:07:14 UTC Tests are running...
🔴 2024-08-02 10:41:24 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11230	9946	0	1	1276	7

🟢 2024-08-02 10:42:00 UTC ydbd size 8.1 GiB changed* by -48 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 2f21060	merge: 3195cb3	diff	diff %
ydbd size	8 725 145 080 Bytes	8 725 145 032 Bytes	-48 Bytes	-0.000%
ydbd stripped size	476 988 872 Bytes	476 988 872 Bytes	0 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}