STEP Exporter - Missing holes on the top side

Description

When exporting to STEP, the holes on the top of the board are missing. From Commit 27a0bd25

Steps to reproduce

KiCad Version

Application: KiCad x64 on x64

Version: 7.0.7-29-g4aa1a881f3, release build

Libraries:
	wxWidgets 3.2.2
	FreeType 2.12.1
	HarfBuzz 6.0.0
	FontConfig 2.14.1

Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW

	wxWidgets: 3.2.2 (wchar_t,wx containers)
	Boost: 1.81.0
	OCC: 7.7.1
	Curl: 7.88.1-DEV
	ngspice: 40
	Compiler: Visual C++ 1936 without C++ ABI

Build settings:
	KICAD_SPICE=ON