24-3: Merge testlib improvements

[snaury]

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Additional information

Recent bugfixes depend on testlib improvements.

[github-actions]

⚪ 2024-09-06 13:50:19 UTC Pre-commit check for d78c5ce has started.
⚪ 2024-09-06 13:53:47 UTC Build linux-x86_64-release-asan is running...
🟢 2024-09-06 14:39:10 UTC Build successful.
⚪ 2024-09-06 14:39:23 UTC Tests are running...
🔴 2024-09-06 16:43:24 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
13885	13777	0	27	49	32

🟢 2024-09-06 16:43:58 UTC ydbd size 5.5 GiB changed* by +2.1 KiB, which is < 100.0 KiB vs stable-24-3: OK

ydbd size dash	stable-24-3: 1bb608a	merge: d78c5ce	diff	diff %
ydbd size	5 934 627 792 Bytes	5 934 629 936 Bytes	+2.1 KiB	+0.000%
ydbd stripped size	1 487 865 920 Bytes	1 487 865 856 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]

⚪ 2024-09-06 14:01:02 UTC Pre-commit check for d78c5ce has started.
⚪ 2024-09-06 14:04:29 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-09-06 15:09:33 UTC Build successful.
⚪ 2024-09-06 15:12:31 UTC Tests are running...
🔴 2024-09-06 17:28:49 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
75029	61568	0	7	13421	33

🟡 2024-09-06 17:29:31 UTC ydbd size 8.2 GiB changed* by +118.9 KiB, which is >= 100.0 KiB vs stable-24-3: Warning

ydbd size dash	stable-24-3: 1bb608a	merge: d78c5ce	diff	diff %
ydbd size	8 760 905 424 Bytes	8 761 027 136 Bytes	+118.9 KiB	+0.001%
ydbd stripped size	478 998 152 Bytes	478 998 152 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]

⚪ 2024-09-06 14:04:50 UTC Pre-commit check for d78c5ce has started.
⚪ 2024-09-06 14:07:55 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-09-06 14:53:11 UTC Build successful.