[KIKIMR-22131] Add temporary feature-flag for new pattern cache in yql/essentials

[abyss7]

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

Нужно, чтобы плавно влить вот этот ПР https://a.yandex-team.ru/review/7386147/details

[github-actions]

⚪ 2025-02-21 11:26:00 UTC Pre-commit check linux-x86_64-relwithdebinfo for ec204d9 has started.
⚪ 2025-02-21 11:26:04 UTC Artifacts will be uploaded here
⚪ 2025-02-21 11:28:59 UTC ya make is running...
🟡 2025-02-21 12:30:45 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?
26274	23669	0	1	2462	142

⚪ 2025-02-21 12:33:24 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-02-21 12:55:04 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
206 (only retried tests)	75	0	0	3	128

🟢 2025-02-21 12:55:11 UTC Build successful.
🟢 2025-02-21 12:55:33 UTC ydbd size 2.1 GiB changed* by +90.7 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: 2d9caae	merge: ec204d9	diff	diff %
ydbd size	2 240 270 264 Bytes	2 240 363 096 Bytes	+90.7 KiB	+0.004%
ydbd stripped size	474 660 312 Bytes	474 671 512 Bytes	+10.9 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]

🟢 2025-02-21 11:26:31 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-02-21 11:26:51 UTC Pre-commit check linux-x86_64-release-asan for ec204d9 has started.
⚪ 2025-02-21 11:28:21 UTC Artifacts will be uploaded here
⚪ 2025-02-21 11:31:11 UTC ya make is running...
🟡 2025-02-21 12:38:02 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
12074	11976	0	46	18	34

⚪ 2025-02-21 12:39:12 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-02-21 12:56:43 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet Going to retry failed tests...

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
143 (only retried tests)	104	0	3	5	31

⚪ 2025-02-21 12:56:52 UTC ya make is running... (failed tests rerun, try 3)
🟡 2025-02-21 13:08:37 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?
65 (only retried tests)	29	0	3	1	32

🟢 2025-02-21 13:08:47 UTC Build successful.
🟡 2025-02-21 13:09:16 UTC ydbd size 3.6 GiB changed* by +429.3 KiB, which is >= 100.0 KiB vs main: Warning

ydbd size dash	main: 64fee69	merge: ec204d9	diff	diff %
ydbd size	3 897 000 568 Bytes	3 897 440 136 Bytes	+429.3 KiB	+0.011%
ydbd stripped size	1 364 376 480 Bytes	1 364 482 048 Bytes	+103.1 KiB	+0.008%

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