Godot v4.3 beta3 displays an error when passing the --help flag

[em-s-h]

Tested versions

• Reproducible in Godot v4.3 beta3.
• Not reproducible in Godot v4.3 betas 1 & 2, and Godot v4.2

System information

Arch Linux #1 SMP PREEMPT_DYNAMIC Fri, 05 Jul 2024 22:11:24 +0000 - Wayland - Vulkan (Forward+) - integrated Intel(R) HD Graphics 5500 (BDW GT2) () - Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz (4 Threads)

Issue description

Passing the --help flag will print the normal help message and this error at the end of it:

ERROR: Benchmark key 'Startup:Core' doesn't exist.
   at: benchmark_end_measure (core/os/os.cpp:658)

Steps to reproduce

Run ./Godot_v4.3-beta3_linux.x86_64 --help in the terminal.

Minimal reproduction project (MRP)

N/A