fix: correct corrupted jest@29.7.0 lockfile entry with wrong dependencies

The jest@npm:^29.6.3 lockfile entry was corrupted during merge conflict
resolution, pointing to @jest/core@30.2.0 instead of @jest/core@29.7.0.
This caused Yarn hardened mode in CI to detect a resolution mismatch and
fail with YN0028.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: msluszniak