Return smart pointer in MakeHarmonizer

[kruall]

Changelog entry

Small refactor of harmonizer in actorsystem code

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

🟢 2025-02-18 14:23:09 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-02-18 14:23:25 UTC Pre-commit check linux-x86_64-relwithdebinfo for e253686 has started.
⚪ 2025-02-18 14:23:37 UTC Artifacts will be uploaded here
⚪ 2025-02-18 14:26:49 UTC ya make is running...
🟡 2025-02-18 16:10:05 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?
28351	25752	0	2	2460	137

⚪ 2025-02-18 16:13:14 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-02-18 16:25:47 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
207 (only retried tests)	78	0	0	1	128

🟢 2025-02-18 16:25:55 UTC Build successful.
🟢 2025-02-18 16:26:17 UTC ydbd size 2.1 GiB changed* by +544 Bytes, which is < 100.0 KiB vs main: OK

ydbd size dash	main: d1f5b91	merge: e253686	diff	diff %
ydbd size	2 236 933 728 Bytes	2 236 934 272 Bytes	+544 Bytes	+0.000%
ydbd stripped size	474 020 440 Bytes	474 020 440 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}

[github-actions]

⚪ 2025-02-18 14:25:59 UTC Pre-commit check linux-x86_64-release-asan for e253686 has started.
⚪ 2025-02-18 14:26:16 UTC Artifacts will be uploaded here
⚪ 2025-02-18 14:29:25 UTC ya make is running...
🟡 2025-02-18 16:15:28 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?
14056	13904	0	90	24	38

⚪ 2025-02-18 16:16:55 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-02-18 16:29:11 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
211 (only retried tests)	172	0	0	4	35

🟢 2025-02-18 16:29:18 UTC Build successful.
🟢 2025-02-18 16:29:51 UTC ydbd size 3.6 GiB changed* by +608 Bytes, which is < 100.0 KiB vs main: OK

ydbd size dash	main: d1f5b91	merge: e253686	diff	diff %
ydbd size	3 891 711 472 Bytes	3 891 712 080 Bytes	+608 Bytes	+0.000%
ydbd stripped size	1 362 428 448 Bytes	1 362 428 384 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}