test_timer_wheel_capacity occasionally fails on qemu_riscv64

See: [https://github.com/vivoblueos/apps_shell/actions/runs/20300708778](url)

```bash
[ RUN      ] test_timer_timeout_accuracy
[       OK ] test_timer_timeout_accuracy
[ RUN      ] test_timer_wheel_capacity
Check Timeout
ninja: build stopped: subcommand failed.
❌ qemu_riscv64.release.dsc build failed: Command failed: ninja -C out/qemu_riscv64.release.dsc check_all
```