Fix cluster permissions check under grpc (#20744)

[UgnineSirdis]

(cherry picked from commit 65bc867)

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

⚪ 2025-07-08 08:09:33 UTC Pre-commit check for 06da585 has started.
⚪ 2025-07-08 08:12:08 UTC Build linux-x86_64-release-asan is running...
🟢 2025-07-08 08:35:59 UTC Build successful.
⚪ 2025-07-08 08:36:18 UTC Tests are running...
🔴 2025-07-08 10:40:57 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10431	10322	0	36	29	44

🟢 2025-07-08 10:41:40 UTC ydbd size 5.6 GiB changed* by +63.8 KiB, which is < 100.0 KiB vs stream-nb-24-4: OK

ydbd size dash	stream-nb-24-4: d6121f9	merge: 06da585	diff	diff %
ydbd size	6 040 855 216 Bytes	6 040 920 520 Bytes	+63.8 KiB	+0.001%
ydbd stripped size	1 510 986 752 Bytes	1 510 993 664 Bytes	+6.8 KiB	+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]

⚪ 2025-07-08 08:11:16 UTC Pre-commit check for 06da585 has started.
⚪ 2025-07-08 08:14:00 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2025-07-08 08:56:00 UTC Build successful.
⚪ 2025-07-08 08:56:16 UTC Tests are running...
🔴 2025-07-08 10:24:26 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14866	13504	0	22	1300	40

🟢 2025-07-08 10:25:20 UTC ydbd size 8.3 GiB changed* by +61.1 KiB, which is < 100.0 KiB vs stream-nb-24-4: OK

ydbd size dash	stream-nb-24-4: d6121f9	merge: 06da585	diff	diff %
ydbd size	8 910 998 320 Bytes	8 911 060 856 Bytes	+61.1 KiB	+0.001%
ydbd stripped size	485 716 712 Bytes	485 719 272 Bytes	+2.5 KiB	+0.001%

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