Fix BSC config proto

[SammyVimes]

(cherry picked from commit 95b354d)

[github-actions]

⚪ 2025-07-17 10:02:12 UTC Pre-commit check for bc44600 has started.
⚪ 2025-07-17 10:05:16 UTC Build linux-x86_64-release-asan is running...
🟢 2025-07-17 10:58:45 UTC Build successful.
⚪ 2025-07-17 10:59:04 UTC Tests are running...
🔴 2025-07-17 13:14:39 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
11946	11828	0	45	27	46

🟡 2025-07-17 13:15:33 UTC ydbd size 5.6 GiB changed* by +280.1 KiB, which is >= 100.0 KiB vs stream-nb-24-4: Warning

ydbd size dash	stream-nb-24-4: 7a91dce	merge: bc44600	diff	diff %
ydbd size	6 040 975 008 Bytes	6 041 261 880 Bytes	+280.1 KiB	+0.005%
ydbd stripped size	1 511 007 040 Bytes	1 511 096 768 Bytes	+87.6 KiB	+0.006%

^{*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]

⚪ 2025-07-17 10:22:01 UTC Pre-commit check for bc44600 has started.
⚪ 2025-07-17 10:25:07 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2025-07-17 11:30:17 UTC Build successful.
⚪ 2025-07-17 11:30:33 UTC Tests are running...
🔴 2025-07-17 13:23:25 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
40640	35350	0	27	5218	45

🟡 2025-07-17 13:24:16 UTC ydbd size 8.3 GiB changed* by +291.8 KiB, which is >= 100.0 KiB vs stream-nb-24-4: Warning

ydbd size dash	stream-nb-24-4: 7a91dce	merge: bc44600	diff	diff %
ydbd size	8 911 096 752 Bytes	8 911 395 520 Bytes	+291.8 KiB	+0.003%
ydbd stripped size	485 721 640 Bytes	485 744 456 Bytes	+22.3 KiB	+0.005%

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