Merge secrets usage improvements to stable-25-3-2-streaming

[yurikiselev]

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

(This PR is a logical copy of #30541)

• Добавлены новые настройки для секретов (*_PATH) в командах, использующих секреты
• Сделана поддержка этих настроек в асинхронных репликациях, трансферах и внешних источниках данных
• Поддержан дамп и рестор этих настроек в локальную файловую систему
• Добавлены ретраи ошибок схемного кеша, которые можно ретраить
• Багфикс кейса, когда в запросе приходят два одинаковых секрета
• Добавлены функциональные тесты, проверяющие в том числе миграцию на новые секреты

Фича отключена, на продовое поведение влиять не должно.

[ydbot]

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• Test Size: small, medium, large (default: all)
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• Additional args: custom ya make arguments

[github-actions]

⚪ 2025-12-12 09:12:02 UTC Pre-commit check linux-x86_64-relwithdebinfo for dd57b33 has started.
⚪ 2025-12-12 09:12:27 UTC Artifacts will be uploaded here
⚪ 2025-12-12 09:16:41 UTC ya make is running...
🟡 2025-12-12 11:05:20 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
41269	38562	0	7	2674	26

⚪ 2025-12-12 11:05:33 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-12-12 11:24:38 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
999 (only retried tests)	980	0	0	0	19

🟢 2025-12-12 11:24:40 UTC Build successful.
🟢 2025-12-12 11:25:00 UTC ydbd size 2.3 GiB changed* by -23.2 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 017c585	merge: dd57b33	diff	diff %
ydbd size	2 468 728 488 Bytes	2 444 351 088 Bytes	-23.2 MiB	-0.987%
ydbd stripped size	525 341 088 Bytes	522 539 336 Bytes	-2.7 MiB	-0.533%

^{*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]

🟢 2025-12-12 09:20:35 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-12-12 09:13:49 UTC Pre-commit check linux-x86_64-release-asan for dd57b33 has started.
⚪ 2025-12-12 09:15:49 UTC Artifacts will be uploaded here
⚪ 2025-12-12 09:19:29 UTC ya make is running...
🟡 2025-12-12 11:29:01 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
17997	17460	0	223	292	22

🟢 2025-12-12 11:29:08 UTC Build successful.
🟢 2025-12-12 11:29:37 UTC ydbd size 3.8 GiB changed* by -61.4 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 017c585	merge: dd57b33	diff	diff %
ydbd size	4 134 132 184 Bytes	4 069 710 808 Bytes	-61.4 MiB	-1.558%
ydbd stripped size	1 534 512 760 Bytes	1 515 419 776 Bytes	-18.2 MiB	-1.244%

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